Add another index

modules/dot-prefix-validation/src/main/java/org/elasticsearch/validation/DotPrefixValidator.java

@@ -40,9 +40,10 @@ public abstract class DotPrefixValidator<RequestType> implements MappedActionFil
      * workarounds until that work can be completed.
      *
      * .elastic-connectors-v1 is used by enterprise search
+     * .ml-anomalies-unrelated is used by ML
      * .ml-state-000001 is used by ML
      */
-    private static Set<String> IGNORED_INDEX_NAMES = Set.of(".elastic-connectors-v1");
+    private static Set<String> IGNORED_INDEX_NAMES = Set.of(".elastic-connectors-v1", ".ml-anomalies-unrelated");
     private static Set<Pattern> IGNORED_INDEX_PATTERNS = Set.of(Pattern.compile("\\.ml-state-\\d+"));
 
     DeprecationLogger deprecationLogger = DeprecationLogger.getLogger(DotPrefixValidator.class);