GCS live tests can be flaky on blob.patch

[github-actions]

Workflow failed: tests #580

[pjbull]

The GCS tests have recently become flaky. We should see if there's some retry setting we can use at the SDK level to avoid this kind of flakiness.

Here's the error:

E           google.api_core.exceptions.ServiceUnavailable: 503 PATCH https://storage.googleapis.com/storage/v1/b/***/o/8pTzjcQttNHsrKFDubuBWw-test_cloudpath_upload_copy-test_upload_from_dir%2Fupload_test_dir%2Fupload_1.txt?generation=1661041260576377&projection=full&prettyPrint=false: We encountered an internal error. Please try again.

For the 2 failing tests, both of the call stacks look like the following and involve the blob.patch call:

cloudpathlib/gs/gspath.py:49: in touch
    self.client._move_file(self, self)
cloudpathlib/gs/gsclient.py:185: in _move_file
    blob.patch()
/opt/hostedtoolcache/Python/3.8.13/x64/lib/python3.8/site-packages/google/cloud/storage/_helpers.py:337: in patch
    api_response = client._patch_resource(
/opt/hostedtoolcache/Python/3.8.13/x64/lib/python3.8/site-packages/google/cloud/storage/client.py:463: in _patch_resource
    return self._connection.api_request(
/opt/hostedtoolcache/Python/3.8.13/x64/lib/python3.8/site-packages/google/cloud/storage/_http.py:73: in api_request
    return call()

[pjbull]

Haven't seen in a while. Closing.