Update x-pack/plugin/esql/qa/server/src/main/java/org/elasticsearch/xpack/esql/qa/rest/RestEsqlTestCase.java

Co-authored-by: Ievgen Degtiarenko <[email protected]>

Author: nik9000

x-pack/plugin/esql/qa/server/src/main/java/org/elasticsearch/xpack/esql/qa/rest/RestEsqlTestCase.java

@@ -1421,7 +1421,7 @@ private static void prepareProfileLogger(RequestObjectBuilder requestObject, @Nu
     /**
      * Cache of capabilities.
      */
-    private static final Map<List<String>, Boolean> capabilities = new ConcurrentHashMap<>();
+    private static final ConcurrentMap<List<String>, Boolean> capabilities = new ConcurrentHashMap<>();
 
     public static boolean hasCapabilities(RestClient client, List<String> requiredCapabilities) throws IOException {
         if (requiredCapabilities.isEmpty()) {