ci(rebase): react on comment when rebase starts

Author: heyhippari

.github/workflows/rebase.yml

@@ -8,12 +8,17 @@ jobs:
     if: github.event.issue.pull_request != '' && contains(github.event.comment.body, '@jellyfin-bot rebase') && github.event.comment.author_association == 'MEMBER'
     runs-on: ubuntu-latest
     steps:
+      - name: Notify as seen
+        uses: peter-evans/create-or-update-comment@v1.4.4
+        with:
+          token: ${{ secrets.GH_TOKEN }}
+          comment-id: ${{ github.event.comment.id }}
+          reactions: +1
       - name: Checkout the latest code
         uses: actions/checkout@v2
         with:
           token: ${{ secrets.GH_TOKEN }}
           fetch-depth: 0
-
       - name: Automatic Rebase
         uses: cirrus-actions/rebase@1.4
         env: