Add client setting to ignore warning exceptions

Signed-off-by: Martin Gaievski <[email protected]>

src/test/java/org/opensearch/knn/index/NmslibIT.java

@@ -383,4 +383,9 @@ public void testInvalidQueryHnswAlgoParams() {
         );
         assertThat(ex.getMessage(), containsString("Failed to parse value [-1] for setting [index.knn.algo_param.ef_search]"));
     }
+
+    @Override
+    protected Settings restClientSettings() {
+        return noStrictDeprecationModeSettingsBuilder().build();
+    }
 }