Fix RepositoriesService Cluster State Application

The current forwarding of the state is disabled if the repo metadata
did not change, so it's somewhat useless.
Relates elastic#49639

server/src/main/java/org/elasticsearch/repositories/RepositoriesService.java

@@ -293,6 +293,9 @@ public void applyClusterState(ClusterChangedEvent event) {
 
             // Check if repositories got changed
             if ((oldMetaData == null && newMetaData == null) || (oldMetaData != null && oldMetaData.equals(newMetaData))) {
+                for (Repository repo : repositories.values()) {
+                    repo.updateState(state);
+                }
                 return;
             }