Git repository URL hosting the values file (not the chart repo).

Do not put credentials in the URL (no user:pass@host). Use Git credentials for private repos.

On GitLab, project visibility Public does not always allow git clone: if Settings → Visibility → Repository (download code) is off, clone fails with a download-disabled error — that is not a missing Jenkins git credential.

Example: https://gitlab.example/group/helm-values.git