chore: Update gapic-generator-python to v1.11.9 (#265)

* chore: Update gapic-generator-python to v1.11.7

PiperOrigin-RevId: 573230664

Source-Link: googleapis/googleapis@93beed3

Source-Link: googleapis/googleapis-gen@f4a4eda
Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiZjRhNGVkYWE4MDU3NjM5ZmNmNmFkZjkxNzk4NzIyODBkMWE4ZjY1MSJ9

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* chore: Update gapic-generator-python to v1.11.8

PiperOrigin-RevId: 574178735

Source-Link: googleapis/googleapis@7307199

Source-Link: googleapis/googleapis-gen@ce3af21
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* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* chore: Update gapic-generator-python to v1.11.9

PiperOrigin-RevId: 574520922

Source-Link: googleapis/googleapis@5183984

Source-Link: googleapis/googleapis-gen@a59af19
Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiYTU5YWYxOWQ0YWM2NTA5ZmFlZGYxY2MzOTAyOTE0MWI2YTViODk2OCJ9

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* remove unused files

* update docs/index.rst

---------

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>
Co-authored-by: Anthonios Partheniou <partheniou@google.com>

packages/grafeas/docs/index.rst

@@ -7,8 +7,8 @@ Api Reference
 .. toctree::
  :maxdepth: 2
 
- grafeas_v1/services
- grafeas_v1/types
+ grafeas_v1/services_
+ grafeas_v1/types_
 
 Changelog
 ---------