build: fix find-inactive-collaborators workflow token

Use a token that will result in GitHub CI running on the pull requests
that this workflow opens.

PR-URL: #39909
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

.github/workflows/find-inactive-collaborators.yml

@@ -32,9 +32,9 @@ jobs:
       - name: Open pull request
         uses: gr2m/create-or-update-pull-request-action@v1
         env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GITHUB_TOKEN: ${{ secrets.GH_USER_TOKEN }}
         with:
-          author: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
+          author: Node.js GitHub Bot <github-bot@iojs.org>
           body: This PR was generated by tools/find-inactive-collaborators.yml.
           commit-message: "meta: move one or more collaborators to emeritus"
           labels: meta