Trainer push to hub (#11328)

* Initial support for upload to hub

* push -> upload

* Fixes + examples

* Fix torchhub test

* Torchhub test I hate you

* push_model_to_hub -> push_to_hub

* Apply mixin to other pretrained models

* Remove ABC inheritance

* Add tests

* Typo

* Run tests

* Install git-lfs

* Change approach

* Add push_to_hub to all

* Staging test suite

* Typo

* Maybe like this?

* More deps

* Cache

* Adapt name

* Quality

* MOAR tests

* Put it in testing_utils

* Docs + torchhub last hope

* Styling

* Wrong method

* Typos

* Update src/transformers/file_utils.py

Co-authored-by: Julien Chaumond <julien@huggingface.co>

* Address review comments

* Apply suggestions from code review

Co-authored-by: Patrick von Platen <patrick.v.platen@gmail.com>

Co-authored-by: Julien Chaumond <julien@huggingface.co>
Co-authored-by: Patrick von Platen <patrick.v.platen@gmail.com>

tests/test_hf_api.py

@@ -22,13 +22,9 @@ import unittest
 
 from requests.exceptions import HTTPError
 from transformers.hf_api import HfApi, HfFolder, ModelInfo, RepoObj
-from transformers.testing_utils import require_git_lfs
+from transformers.testing_utils import ENDPOINT_STAGING, PASS, USER, is_staging_test, require_git_lfs
 
 
-USER = "__DUMMY_TRANSFORMERS_USER__"
-PASS = "__DUMMY_TRANSFORMERS_PASS__"
-
-ENDPOINT_STAGING = "https://moon-staging.huggingface.co"
 ENDPOINT_STAGING_BASIC_AUTH = f"https://{USER}:{PASS}@moon-staging.huggingface.co"
 
 REPO_NAME = f"my-model-{int(time.time())}"
@@ -106,6 +102,7 @@ class HfFolderTest(unittest.TestCase):
 
 
 @require_git_lfs
+@is_staging_test
 class HfLargefilesTest(HfApiCommonTest):
     @classmethod
     def setUpClass(cls):