tools: pass bot token to node-pr-labeler

This should allow workflows that use the `labeled` event to be run.

PR-URL: https://github.com/nodejs/node/pull/39271
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>

.github/workflows/label-pr.yml

@@ -11,4 +11,5 @@ jobs:
     steps:
       - uses: nodejs/node-pr-labeler@v1
         with:
+          repo-token: ${{ secrets.GH_USER_TOKEN }}
           configuration-path: .github/label-pr-config.yml