chore: Update generation configuration at Mon Aug 11 02:42:50 UTC 2025

Author: cloud-java-bot

generation_config.yaml

@@ -1,5 +1,5 @@
 gapic_generator_version: 2.61.0
-googleapis_commitish: 07d9064dde02424bc0166c04ac6582e0922f89f9
+googleapis_commitish: f4902d9b4168b4d1b162f5c5bcf149086579fa26
 libraries_bom_version: 26.65.0
 libraries:
   - api_shortname: spanner