chore: Update generation configuration at Thu Jun 26 02:33:01 UTC 2025

Author: cloud-java-bot

generation_config.yaml

@@ -1,5 +1,5 @@
 gapic_generator_version: 2.59.0
-googleapis_commitish: 8a883235bc76e941ef745a5b5465878dadc9c440
+googleapis_commitish: 4667a434d330d4adc942b67304bec5db29bc295c
 libraries_bom_version: 26.61.0
 libraries:
   - api_shortname: spanner