chore: Update gapic-generator-python to v1.8.2 (#102)

* chore: Update gapic-generator-python to v1.8.2

PiperOrigin-RevId: 504289125

Source-Link: googleapis/googleapis@38a48a4

Source-Link: googleapis/googleapis-gen@b2dc226
Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiYjJkYzIyNjYzZGJlNDdhOTcyYzhkOGMyZjhhNGRmMDEzZGFmZGNiYyJ9

* 🦉 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>

packages/google-cloud-common/.coveragerc

@@ -5,6 +5,7 @@ branch = True
 show_missing = True
 omit =
     google/cloud/common/__init__.py
+    google/cloud/common/gapic_version.py
 exclude_lines =
     # Re-enable the standard pragma
     pragma: NO COVER