fix(regen): deleteQueue marked as idempotent for retry settings (#49)

Author: yoshi-automation

google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2/stub/CloudTasksStubSettings.java

@@ -556,7 +556,7 @@ private static Builder initDefaults(Builder builder) {
 
       builder
           .deleteQueueSettings()
-          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("non_idempotent"))
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("idempotent"))
           .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("default"));
 
       builder