ci: hopefully fix automatic vimdoc build

.github/workflows/docs.yml

@@ -5,13 +5,19 @@ on: [push]
 jobs:
   docs:
     runs-on: ubuntu-latest
-    name: pandoc to vimdoc
+    if: ${{ github.ref == 'refs/heads/main' }}
     steps:
-      - uses: actions/checkout@v2
-      - uses: kdheepak/panvimdoc@main
+      - uses: actions/checkout@v3
+      - name: panvimdoc
+        uses: kdheepak/panvimdoc@main
         with:
           vimdoc: spellwarn
-      - uses: stefanzweifel/git-auto-commit-action@v4
+          demojify: true
+          treesitter: true
+      - name: Push changes
+        uses: stefanzweifel/git-auto-commit-action@v4
         with:
-          commit_message: "Auto generate docs"
-          branch: ${{ github.head_ref }}
+          commit_message: "chore(build): auto-generate vimdoc"
+          commit_user_name: "github-actions[bot]"
+          commit_user_email: "github-actions[bot]@users.noreply.github.com"
+          commit_author: "github-actions[bot] <github-actions[bot]@users.noreply.github.com>"