docs build failed in google-cloud-dataplex

[parthea]

See https://github.com/googleapis/googleapis/blob/7976ffadc0f21ee9149708c0c97ef000e15de1eb/google/cloud/dataplex/v1/catalog.proto#L1171 where there is an asterisk character which is not surrounded by backticks or escaped.

This caused the docs build to fail with

sphinx.errors.SphinxWarning: /home/runner/work/google-cloud-python/google-cloud-python/packages/google-cloud-dataplex/google/cloud/dataplex_v1/types/catalog.py:docstring of google.cloud.dataplex_v1.types.catalog.ListEntriesRequest:23:Inline emphasis start-string without end-string.

Instead of

  // "entry_type=projects/example-project/locations/us/entryTypes/a* OR
  //  entry_type=projects/another-project/locations/*"

It should be

  // `entry_type=projects/example-project/locations/us/entryTypes/a* OR
  //  entry_type=projects/another-project/locations/*`

See https://github.com/googleapis/google-cloud-python/actions/runs/9813526846/job/27099671653

We should add a check upstream for unsupported formatting in proto comments