Bump newrelic_rpm from 10.2.0 to 10.4.0

Bumps [newrelic_rpm](https://github.com/newrelic/newrelic-ruby-agent) from 10.2.0 to 10.4.0.
- [Release notes](https://github.com/newrelic/newrelic-ruby-agent/releases)
- [Changelog](https://github.com/newrelic/newrelic-ruby-agent/blob/dev/CHANGELOG.md)
- [Commits](newrelic/newrelic-ruby-agent@10.2.0...10.4.0)

---
updated-dependencies:
- dependency-name: newrelic_rpm
  dependency-version: 10.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Gemfile.lock

@@ -83,7 +83,7 @@ GEM
     multi_json (1.17.0)
     mustermann (3.0.4)
       ruby2_keywords (~> 0.0.1)
-    newrelic_rpm (10.2.0)
+    newrelic_rpm (10.4.0)
       logger
     nio4r (2.7.5)
     parallel (1.27.0)