chore: Update gapic-generator-python to v1.16.1 (#873)

* chore: Update gapic-generator-python to v1.16.1

PiperOrigin-RevId: 618243632

Source-Link: googleapis/googleapis@078a38b

Source-Link: googleapis/googleapis-gen@7af768c
Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiN2FmNzY4YzNmOGNlNTg5OTQ0ODIzNTBmNzQwMTE3MzMyOTk1MGEzMSJ9

* 🦉 Updates from OwlBot post-processor

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

* 🦉 Updates from OwlBot post-processor

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

---------

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>
Co-authored-by: Kevin Zheng <147537668+gkevinzheng@users.noreply.github.com>

Author: gcf-owl-bot[bot]

packages/google-cloud-logging/samples/generated_samples/snippet_metadata_google.logging.v2.json

@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-logging",
-    "version": "3.10.0"
+    "version": "0.1.0"
   },
   "snippets": [
     {