[CI] Auto commit changes from spotless

Author: elasticsearchmachine

server/src/main/java/org/elasticsearch/index/shard/IndexShard.java

@@ -4523,7 +4523,7 @@ public void ensureMutable(ActionListener<Void> listener) {
         }));
     }
 
-    private boolean assertEngineReferenceIsNull(String message)  {
+    private boolean assertEngineReferenceIsNull(String message) {
         try (var engineRef = engineReferenceManager.getEngineRef()) {
             assert engineRef.getEngineOrNull() == null : message;
             return true;