Use magic mirror depot rather than artifactual for maven central proxy (#9351)

* use magic mirror depot

* remove separate cache name used for testing

Author: randomanderson

.gitlab-ci.yml

@@ -26,8 +26,8 @@ variables:
   DEPENDENCY_CACHE_POLICY: pull
   BUILD_CACHE_POLICY: pull
   GRADLE_VERSION: "8.14.3" # must match gradle-wrapper.properties
-  MAVEN_REPOSITORY_PROXY: "http://artifactual.artifactual.all-clusters.local-dc.fabric.dog:8081/repository/maven-central/"
-  GRADLE_PLUGIN_PROXY: "http://artifactual.artifactual.all-clusters.local-dc.fabric.dog:8081/repository/gradle-plugin-portal-proxy/"
+  MAVEN_REPOSITORY_PROXY: "https://depot-read-api-java.us1.ddbuild.io/magicmirror/magicmirror/@current/"
+  GRADLE_PLUGIN_PROXY: "https://depot-read-api-java.us1.ddbuild.io/magicmirror/magicmirror/@current/"
   BUILDER_IMAGE_VERSION_PREFIX: "v25.07-" # use either an empty string (e.g. "") for latest images or a version followed by a hyphen (e.g. "v25.05-")
   REPO_NOTIFICATION_CHANNEL: "#apm-java-escalations"
   DEFAULT_TEST_JVMS: /^(8|11|17|21|stable)$/