Update apache archive mirror url for faster artifact resolution

Author: breskeby

buildSrc/src/main/groovy/org/elasticsearch/hadoop/gradle/fixture/hadoop/HadoopFixturePlugin.groovy

@@ -32,7 +32,7 @@ import org.gradle.api.publish.ivy.IvyArtifact
 
 class HadoopFixturePlugin implements Plugin<Project> {
 
-    private static final String APACHE_MIRROR = "https://archive.apache.org/dist/"
+    private static final String APACHE_MIRROR = "https://dlcdn.apache.org/"
 
     static class HadoopFixturePluginExtension {
         private NamedDomainObjectContainer<HadoopClusterConfiguration> clusters