fix(ci): Add `id-token: write` permission to triage workflow

[github-actions]

Note

The pull request "fix(ci): Add id-token: write permission to triage workflow" was created by @chargome but did not reference an issue. Therefore this issue was created for better visibility in external tools like Linear.

The claude-code-action@v1 requires OIDC token access to authenticate. Without the id-token: write permission, the workflow fails with "Unable to get ACTIONS_ID_TOKEN_REQUEST_URL env variable".

[linear]

JS-1742