chore(deps): bump github.com/sigstore/sigstore/pkg/signature/kms/gcp

Bumps [github.com/sigstore/sigstore/pkg/signature/kms/gcp](https://github.com/sigstore/sigstore) from 1.8.1 to 1.8.7.
- [Release notes](https://github.com/sigstore/sigstore/releases)
- [Commits](sigstore/sigstore@v1.8.1...v1.8.7)

---
updated-dependencies:
- dependency-name: github.com/sigstore/sigstore/pkg/signature/kms/gcp
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

go.mod

@@ -25,7 +25,7 @@ require (
 	github.com/go-git/go-git/v5 v5.11.0
 	github.com/goccy/go-yaml v1.11.3
 	github.com/gofrs/flock v0.8.1
-	github.com/google/go-containerregistry v0.19.0
+	github.com/google/go-containerregistry v0.20.0
 	github.com/gosuri/uitable v0.0.4
 	github.com/invopop/jsonschema v0.12.0
 	github.com/mholt/archiver/v3 v3.5.1
@@ -38,7 +38,7 @@ require (
 	github.com/sigstore/cosign/v2 v2.2.3
 	github.com/sigstore/sigstore/pkg/signature/kms/aws v1.8.1
 	github.com/sigstore/sigstore/pkg/signature/kms/azure v1.8.1
-	github.com/sigstore/sigstore/pkg/signature/kms/gcp v1.8.1
+	github.com/sigstore/sigstore/pkg/signature/kms/gcp v1.8.7
 	github.com/sigstore/sigstore/pkg/signature/kms/hashivault v1.8.1
 	github.com/spf13/cobra v1.8.1
 	github.com/spf13/pflag v1.0.5
@@ -64,6 +64,7 @@ require (
 
 require (
 	github.com/evanphx/json-patch/v5 v5.9.0 // indirect
+	github.com/go-jose/go-jose/v4 v4.0.2 // indirect
 	github.com/go-logr/logr v1.4.2 // indirect
 )
 
@@ -72,11 +73,11 @@ require (
 	atomicgo.dev/keyboard v0.2.9 // indirect
 	atomicgo.dev/schedule v0.1.0 // indirect
 	cloud.google.com/go v0.115.0 // indirect
-	cloud.google.com/go/auth v0.6.0 // indirect
+	cloud.google.com/go/auth v0.6.1 // indirect
 	cloud.google.com/go/auth/oauth2adapt v0.2.2 // indirect
 	cloud.google.com/go/compute/metadata v0.3.0 // indirect
 	cloud.google.com/go/iam v1.1.9 // indirect
-	cloud.google.com/go/kms v1.18.0 // indirect
+	cloud.google.com/go/kms v1.18.2 // indirect
 	cloud.google.com/go/longrunning v0.5.7 // indirect
 	cloud.google.com/go/storage v1.42.0 // indirect
 	cuelabs.dev/go/oci/ociregistry v0.0.0-20231103182354-93e78c079a13 // indirect
@@ -146,22 +147,22 @@ require (
 	github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2 // indirect
 	github.com/atotto/clipboard v0.1.4 // indirect
 	github.com/aws/aws-sdk-go v1.54.9 // indirect
-	github.com/aws/aws-sdk-go-v2 v1.24.1 // indirect
-	github.com/aws/aws-sdk-go-v2/config v1.26.6 // indirect
-	github.com/aws/aws-sdk-go-v2/credentials v1.16.16 // indirect
-	github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.14.11 // indirect
-	github.com/aws/aws-sdk-go-v2/internal/configsources v1.2.10 // indirect
-	github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.5.10 // indirect
-	github.com/aws/aws-sdk-go-v2/internal/ini v1.7.3 // indirect
+	github.com/aws/aws-sdk-go-v2 v1.27.2 // indirect
+	github.com/aws/aws-sdk-go-v2/config v1.27.18 // indirect
+	github.com/aws/aws-sdk-go-v2/credentials v1.17.18 // indirect
+	github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.16.5 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/configsources v1.3.9 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.6.9 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/ini v1.8.0 // indirect
 	github.com/aws/aws-sdk-go-v2/service/ecr v1.20.2 // indirect
 	github.com/aws/aws-sdk-go-v2/service/ecrpublic v1.18.2 // indirect
-	github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.10.4 // indirect
-	github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.10.10 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.11.2 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.11.11 // indirect
 	github.com/aws/aws-sdk-go-v2/service/kms v1.27.9 // indirect
-	github.com/aws/aws-sdk-go-v2/service/sso v1.18.7 // indirect
-	github.com/aws/aws-sdk-go-v2/service/ssooidc v1.21.7 // indirect
-	github.com/aws/aws-sdk-go-v2/service/sts v1.26.7 // indirect
-	github.com/aws/smithy-go v1.19.0 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sso v1.20.11 // indirect
+	github.com/aws/aws-sdk-go-v2/service/ssooidc v1.24.5 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sts v1.28.12 // indirect
+	github.com/aws/smithy-go v1.20.2 // indirect
 	github.com/awslabs/amazon-ecr-credential-helper/ecr-login v0.0.0-20231024185945-8841054dbdb8 // indirect
 	github.com/aymanbagabas/go-osc52/v2 v2.0.1 // indirect
 	github.com/bahlo/generic-list-go v0.2.0 // indirect
@@ -177,7 +178,7 @@ require (
 	github.com/buildkite/go-pipeline v0.3.2 // indirect
 	github.com/buildkite/interpolate v0.0.0-20200526001904-07f35b4ae251 // indirect
 	github.com/cenkalti/backoff/v3 v3.2.2 // indirect
-	github.com/cenkalti/backoff/v4 v4.2.1 // indirect
+	github.com/cenkalti/backoff/v4 v4.3.0 // indirect
 	github.com/cespare/xxhash/v2 v2.2.0 // indirect
 	github.com/chai2010/gettext-go v1.0.2 // indirect
 	github.com/charmbracelet/bubbles v0.16.1 // indirect
@@ -309,7 +310,7 @@ require (
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99 // indirect
 	github.com/jedisct1/go-minisign v0.0.0-20230811132847-661be99b8267 // indirect
-	github.com/jellydator/ttlcache/v3 v3.1.1 // indirect
+	github.com/jellydator/ttlcache/v3 v3.2.0 // indirect
 	github.com/jinzhu/copier v0.4.0 // indirect
 	github.com/jinzhu/inflection v1.0.0 // indirect
 	github.com/jinzhu/now v1.1.5 // indirect
@@ -330,7 +331,7 @@ require (
 	github.com/kylelemons/godebug v1.1.0 // indirect
 	github.com/lann/builder v0.0.0-20180802200727-47ae307949d0 // indirect
 	github.com/lann/ps v0.0.0-20150810152359-62de8c46ede0 // indirect
-	github.com/letsencrypt/boulder v0.0.0-20231026200631-000cd05d5491 // indirect
+	github.com/letsencrypt/boulder v0.0.0-20240620165639-de9c06129bec // indirect
 	github.com/lib/pq v1.10.9 // indirect
 	github.com/liggitt/tabwriter v0.0.0-20181228230101-89fcab3d43de // indirect
 	github.com/lithammer/dedent v1.1.0 // indirect
@@ -473,13 +474,13 @@ require (
 	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.52.0 // indirect
 	go.opentelemetry.io/otel v1.27.0 // indirect
 	go.opentelemetry.io/otel/metric v1.27.0 // indirect
-	go.opentelemetry.io/otel/sdk v1.26.0 // indirect
+	go.opentelemetry.io/otel/sdk v1.27.0 // indirect
 	go.opentelemetry.io/otel/trace v1.27.0 // indirect
 	go.starlark.net v0.0.0-20230525235612-a134d8f9ddca // indirect
 	go.step.sm/crypto v0.42.1 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
 	go.uber.org/zap v1.26.0 // indirect
-	golang.org/x/exp v0.0.0-20231108232855-2478ac86f678 // indirect
+	golang.org/x/exp v0.0.0-20240112132812-db7319d0e0e3 // indirect
 	golang.org/x/mod v0.17.0 // indirect
 	golang.org/x/net v0.26.0 // indirect
 	golang.org/x/oauth2 v0.21.0 // indirect
@@ -488,14 +489,13 @@ require (
 	golang.org/x/time v0.5.0 // indirect
 	golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d // indirect
 	golang.org/x/xerrors v0.0.0-20231012003039-104605ab7028 // indirect
-	google.golang.org/api v0.186.0 // indirect
+	google.golang.org/api v0.187.0 // indirect
 	google.golang.org/genproto v0.0.0-20240624140628-dc46fd24d27d // indirect
 	google.golang.org/genproto/googleapis/api v0.0.0-20240624140628-dc46fd24d27d // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20240624140628-dc46fd24d27d // indirect
-	google.golang.org/grpc v1.64.0 // indirect
+	google.golang.org/grpc v1.64.1 // indirect
 	google.golang.org/protobuf v1.34.2 // indirect
 	gopkg.in/evanphx/json-patch.v5 v5.6.0 // indirect
-	gopkg.in/go-jose/go-jose.v2 v2.6.3 // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect
 	gopkg.in/ini.v1 v1.67.0 // indirect
 	gopkg.in/op/go-logging.v1 v1.0.0-20160211212156-b2cb9fa56473 // indirect