also fix gradle plugin to be early enough in the chain

Author: vandonr

buildSrc/src/main/kotlin/datadog/gradle/plugin/muzzle/MuzzleMavenRepoUtils.kt

@@ -110,6 +110,7 @@ internal object MuzzleMavenRepoUtils {
         module = muzzleDirective.module
         versions = version.toString()
         assertPass = !muzzleDirective.assertPass
+        additionalRepositories = muzzleDirective.additionalRepositories
         excludedDependencies = muzzleDirective.excludedDependencies
         includeSnapshots = muzzleDirective.includeSnapshots
       }

buildSrc/src/main/kotlin/datadog/gradle/plugin/muzzle/MuzzlePlugin.kt

@@ -185,6 +185,8 @@ class MuzzlePlugin : Plugin<Project> {
         }
       }
       instrumentationProject.configurations.register(muzzleTaskName) {
+        MuzzleExcludedDependencySupport.applyTo(instrumentationProject, this, muzzleDirective, versionArtifact)
+
         if (!muzzleDirective.isCoreJdk && versionArtifact != null) {
           val depId = buildString {
             append("${versionArtifact.groupId}:${versionArtifact.artifactId}:${versionArtifact.version}")