Remove external maven repos (#6440)

* Remove external maven repos

* Fix

instrumentation/grails-3.0/javaagent/build.gradle.kts

@@ -12,21 +12,12 @@ muzzle {
     // version 3.3.6 depends on org.grails:grails-datastore-core:6.1.10.BUILD-SNAPSHOT
     // which (also obviously) does not exist
     skip("3.1.15", "3.3.6")
+    // these versions pass if you add the grails maven repository (https://repo.grails.org/artifactory/core)
+    skip("3.2.0", "3.3.0", "3.3.1", "3.3.2", "3.3.3", "4.0.0", "4.0.1", "4.0.5", "4.0.6", "4.0.7", "4.0.8", "4.0.9")
     assertInverse.set(true)
   }
 }
 
-repositories {
-  mavenCentral()
-  maven {
-    setUrl("https://repo.grails.org/artifactory/core")
-    mavenContent {
-      releasesOnly()
-    }
-  }
-  mavenLocal()
-}
-
 // first version where our tests work
 val grailsVersion = "3.0.6"
 val springBootVersion = "1.2.5.RELEASE"

smoke-tests/images/play/build.gradle.kts

@@ -21,14 +21,6 @@ play {
   injectedRoutesGenerator.set(true)
 }
 
-repositories {
-  mavenCentral()
-  maven {
-    setName("lightbend-maven-releases")
-    setUrl("https://repo.lightbend.com/lightbend/maven-release")
-  }
-}
-
 dependencies {
   implementation("com.typesafe.play:play-guice_$scalaVer:$playVer")
   implementation("com.typesafe.play:play-logback_$scalaVer:$playVer")