Bump github.com/newrelic/go-agent/v3 from 3.12.0 to 3.15.0

Bumps [github.com/newrelic/go-agent/v3](https://github.com/newrelic/go-agent) from 3.12.0 to 3.15.0.
- [Release notes](https://github.com/newrelic/go-agent/releases)
- [Changelog](https://github.com/newrelic/go-agent/blob/master/CHANGELOG.md)
- [Commits](newrelic/go-agent@v3.12.0...v3.15.0)

---
updated-dependencies:
- dependency-name: github.com/newrelic/go-agent/v3
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

go.mod

@@ -15,7 +15,7 @@ require (
 	github.com/honeybadger-io/honeybadger-go v0.5.0
 	github.com/ianlancetaylor/cgosymbolizer v0.0.0-20201204192058-7acc97e53614 // indirect
 	github.com/matoous/go-nanoid/v2 v2.0.0
-	github.com/newrelic/go-agent/v3 v3.13.0
+	github.com/newrelic/go-agent/v3 v3.15.0
 	github.com/prometheus/client_golang v1.11.0
 	github.com/sirupsen/logrus v1.8.1
 	github.com/stretchr/testify v1.7.0

go.sum

@@ -327,8 +327,8 @@ github.com/nats-io/jwt v0.3.0/go.mod h1:fRYCDE99xlTsqUzISS1Bi75UBJ6ljOJQOAAu5Vgl
 github.com/nats-io/nats.go v1.9.1/go.mod h1:ZjDU1L/7fJ09jvUSRVBR2e7+RnLiiIQyqyzEE/Zbp4w=
 github.com/nats-io/nkeys v0.1.0/go.mod h1:xpnFELMwJABBLVhffcfd1MZx6VsNRFpEugbxziKVo7w=
 github.com/nats-io/nuid v1.0.1/go.mod h1:19wcPz3Ph3q0Jbyiqsd0kePYG7A95tJPxeL+1OSON2c=
-github.com/newrelic/go-agent/v3 v3.13.0 h1:H6KRWUQjW0OoY3/qif+0krNNzCgf8DovELI8TpaT5DM=
-github.com/newrelic/go-agent/v3 v3.13.0/go.mod h1:1A1dssWBwzB7UemzRU6ZVaGDsI+cEn5/bNxI0wiYlIc=
+github.com/newrelic/go-agent/v3 v3.15.0 h1:XKF81YOkkO5cCEtQmguamOVMVmeWnv7X3+mkRtwwG3U=
+github.com/newrelic/go-agent/v3 v3.15.0/go.mod h1:1A1dssWBwzB7UemzRU6ZVaGDsI+cEn5/bNxI0wiYlIc=
 github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e h1:fD57ERR4JtEqsWbfPhv4DMiApHyliiK5xCTNVSPiaAs=
 github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
 github.com/nxadm/tail v1.4.4 h1:DQuhQpB1tVlglWS2hLQ5OV6B5r8aGxSrPc5Qo6uTN78=