Merge branch 'main' into migration.python-bigquery-dataframes.migration.2026-04-01_11-36-55.migrate

Author: parthea

.librarian/config.yaml

@@ -28,3 +28,7 @@ libraries:
 # Allow releases for bigframes once the bug above is fixed.
   - id: "bigframes"
     release_blocked: true
+# TODO(https://github.com/googleapis/google-cloud-python/issues/16506):
+# Allow generation for google-cloud-firestore once this bug is fixed.
+  - id: "google-cloud-firestore"
+    generate_blocked: true