test: update reflect-config for StorageNativeCanary to allow directpath to work (#2733)

Add reflect-config for each of grpc's protobuf messages, builders and enums. Fixes #2716

Author: BenWhitehead

google-cloud-storage/src/test/java/com/google/cloud/storage/it/StorageNativeCanary.java

@@ -57,12 +57,7 @@ public void canary_happyPath_http() throws Exception {
 
  @Test
  public void canary_happyPath_grpc() throws Exception {
- assertBehaviorOfPrimaryStorageActions(
- StorageOptions.grpc()
- // TODO https://github.com/googleapis/java-storage/issues/2716
- .setAttemptDirectPath(false)
- .build()
- .getService());
+ assertBehaviorOfPrimaryStorageActions(StorageOptions.grpc().build().getService());
  }
 
  /**