Merge pull request #406 from scala-steward/update/newrelic-agent-4.12.1

newrelic-agent 4.12.1 (was 4.9.0)

Author: mkurz

build.sbt

@@ -52,5 +52,5 @@ Compile / managedSourceDirectories += crossTarget.value / "version"
 Compile / doc / sources := Seq.empty
 Compile / packageDoc / publishArtifact := false
 
-newrelicVersion := "4.9.0"
+newrelicVersion := "4.12.1"
 newrelicAppName := "playframework.com"