build(deps): Bump golang from 5f5d61d to 76aadd9

Bumps golang from `5f5d61d` to `76aadd9`.

---
updated-dependencies:
- dependency-name: golang
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Dockerfile

@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM golang:1.21.6@sha256:5f5d61dcb58900bc57b230431b6367c900f9982b583adcabf9fa93fd0aa5544a AS builder
+FROM golang:1.21.6@sha256:76aadd914a29a2ee7a6b0f3389bb2fdb87727291d688e1d972abe6c0fa6f2ee0 AS builder
 ENV APP_ROOT=/opt/app-root
 ENV GOPATH=$APP_ROOT
 
@@ -31,7 +31,7 @@ RUN CGO_ENABLED=0 go build -gcflags "all=-N -l" -ldflags "${SERVER_LDFLAGS}" -o
 RUN go test -c -ldflags "${SERVER_LDFLAGS}" -cover -covermode=count -coverpkg=./... -o rekor-server_test ./cmd/rekor-server
 
 # Multi-Stage production build
-FROM golang:1.21.6@sha256:5f5d61dcb58900bc57b230431b6367c900f9982b583adcabf9fa93fd0aa5544a as deploy
+FROM golang:1.21.6@sha256:76aadd914a29a2ee7a6b0f3389bb2fdb87727291d688e1d972abe6c0fa6f2ee0 as deploy
 
 # Retrieve the binary from the previous stage
 COPY --from=builder /opt/app-root/src/rekor-server /usr/local/bin/rekor-server