chore(main): release 2.18.5

Author: release-please[bot]

CHANGELOG.md

@@ -1,5 +1,12 @@
 # Changelog
 
+## [2.18.5](https://github.com/googleapis/google-api-php-client/compare/v2.18.4...v2.18.5) (2026-01-09)
+
+
+### Bug Fixes
+
+* Upload assets release job ([#2671](https://github.com/googleapis/google-api-php-client/issues/2671)) ([0f56ea7](https://github.com/googleapis/google-api-php-client/commit/0f56ea773cb51cc6131c442d112d7fd630b49b5c))
+
 ## [2.18.4](https://github.com/googleapis/google-api-php-client/compare/v2.18.3...v2.18.4) (2025-09-29)