ES-9508 Watcher setting deprecation

Author: lukewhiting

x-pack/plugin/deprecation/src/main/java/org/elasticsearch/xpack/deprecation/NodeDeprecationChecks.java

@@ -1018,7 +1018,7 @@ static DeprecationIssue checkWatcherBulkConcurrentRequestsSetting(
             Setting.Property.NodeScope,
             Setting.Property.Deprecated
         );
-        String url = "https://ela.st/es-deprecation-8-watcher-bulk-concurrency-setting";
+        String url = "https://ela.st/es-deprecation-8-watcher-settings";
         return checkRemovedSetting(
             clusterState.metadata().settings(),
             settings,