chore: create a release

Author: cloud-sdk-librarian-robot

.librarian/state.yaml

@@ -1,7 +1,7 @@
 image: us-central1-docker.pkg.dev/cloud-sdk-librarian-prod/images-prod/librarian-release-container:latest
 libraries:
   - id: librarian
-    version: 0.5.0
+    version: 0.6.0
     last_generated_commit: 97a83d76a09a7f6dcab43675c87bdfeb5bcf1cb5
     apis: []
     source_roots: