CI failed in generation PR

[JoeWang1127]

The docs check failed in librarian generation PR:

Traceback (most recent call last):
  File "/home/runner/work/google-cloud-python/google-cloud-python/packages/google-shopping-merchant-accounts/.nox/docs/lib/python3.10/site-packages/sphinx/cmd/build.py", line 276, in build_main
    app.build(args.force_all, filenames)
  File "/home/runner/work/google-cloud-python/google-cloud-python/packages/google-shopping-merchant-accounts/.nox/docs/lib/python3.10/site-packages/sphinx/application.py", line 330, in build
    self.builder.build_update()
  File "/home/runner/work/google-cloud-python/google-cloud-python/packages/google-shopping-merchant-accounts/.nox/docs/lib/python3.10/site-packages/sphinx/builders/__init__.py", line 286, in build_update
    self.build(to_build,
  File "/home/runner/work/google-cloud-python/google-cloud-python/packages/google-shopping-merchant-accounts/.nox/docs/lib/python3.10/site-packages/sphinx/builders/__init__.py", line 299, in build
    with logging.pending_warnings():
  File "/opt/hostedtoolcache/Python/3.10.19/x64/lib/python3.10/contextlib.py", line 142, in __exit__
    next(self.gen)
  File "/home/runner/work/google-cloud-python/google-cloud-python/packages/google-shopping-merchant-accounts/.nox/docs/lib/python3.10/site-packages/sphinx/util/logging.py", line 217, in pending_warnings
    memhandler.flushTo(logger)
  File "/home/runner/work/google-cloud-python/google-cloud-python/packages/google-shopping-merchant-accounts/.nox/docs/lib/python3.10/site-packages/sphinx/util/logging.py", line 182, in flushTo
    logger.handle(record)
  File "/opt/hostedtoolcache/Python/3.10.19/x64/lib/python3.10/logging/__init__.py", line 1634, in handle
    self.callHandlers(record)
  File "/opt/hostedtoolcache/Python/3.10.19/x64/lib/python3.10/logging/__init__.py", line 1696, in callHandlers
    hdlr.handle(record)
  File "/opt/hostedtoolcache/Python/3.10.19/x64/lib/python3.10/logging/__init__.py", line 964, in handle
    rv = self.filter(record)
  File "/opt/hostedtoolcache/Python/3.10.19/x64/lib/python3.10/logging/__init__.py", line 821, in filter
    result = f.filter(record)
  File "/home/runner/work/google-cloud-python/google-cloud-python/packages/google-shopping-merchant-accounts/.nox/docs/lib/python3.10/site-packages/sphinx/util/logging.py", line 425, in filter
    raise exc
sphinx.errors.SphinxWarning: /home/runner/work/google-cloud-python/google-cloud-python/packages/google-shopping-merchant-accounts/google/shopping/merchant_accounts_v1/services/developer_registration_service/async_client.py:docstring of google.shopping.merchant_accounts_v1.services.developer_registration_service.async_client.DeveloperRegistrationServiceAsyncClient.get_account_for_gcp_registration:39:Block quote ends without a blank line; unexpected unindent.

[JoeWang1127]

This is blocking generation PR to merge

[parthea]

The long term fix is captured in googleapis/gapic-generator-python#2490 which is to improve the comment for google.protobuf.Empty

[parthea]

This was labelled as a P1 because there was a presubmit check failing, however the presubmit is not marked as a required check and hence non-blocking. Since it's not a blocking issue, we can bump the priority to P2.

We will keep this bug open to track the long term fix in googleapis/gapic-generator-python#2490.

[parthea]

Switching back to P1 since we want presubmits to be green, even the non-blocking ones