chore(deps): bump google-adk

Bumps the samples-minor-patch group with 1 update in the /go/core/test/e2e/agents/kebab directory: [google-adk](https://github.com/google/adk-python).


Updates `google-adk` from 1.28.1 to 1.29.0
- [Release notes](https://github.com/google/adk-python/releases)
- [Changelog](https://github.com/google/adk-python/blob/main/CHANGELOG.md)
- [Commits](google/adk-python@v1.28.1...v1.29.0)

---
updated-dependencies:
- dependency-name: google-adk
  dependency-version: 1.29.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: samples-minor-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

go/core/test/e2e/agents/kebab/pyproject.toml

@@ -4,5 +4,5 @@ version = "0.1"
 description = "Kebab agent"
 readme = "README.md"
 dependencies = [
-  "google-adk>=1.8.0",
+  "google-adk>=1.29.0",
 ]