PR created by the Librarian CLI to initialize a release. Merging this PR
will auto trigger a release.

Librarian Version: v0.16.1-0.20260608172125-d123ec9cac76
Language Image:
us-central1-docker.pkg.dev/cloud-sdk-librarian-prod/images-prod/python-librarian-generator@sha256:234b9d1f2ddb057ed7ac6a38db0bf8163d839c65c6cf88ade52530cddebce59e
<details><summary>google-cloud-agentidentitycredentials:
v0.1.0</summary>

##
[v0.1.0](https://github.com/googleapis/google-cloud-python/compare/google-cloud-agentidentitycredentials-v0.0.0...google-cloud-agentidentitycredentials-v0.1.0)
(2026-06-09)

### Features

* add google-cloud-agentidentitycredentials (#17399)
([6e0f0ece](https://github.com/googleapis/google-cloud-python/commit/6e0f0ece))

</details>