chore(workflow): replace manual commit step with AutoFix action for Biome formatting

.github/workflows/biome.yml

@@ -29,11 +29,5 @@ jobs:
       - name: Run Biome formatter
         run: pnpm biome format . --write
 
-      - name: Commit changes if needed
-        run: |
-            BRANCH=$(echo "${{ github.head_ref || github.ref_name }}")
-            git config --global user.name 'github-actions[bot]'
-            git config --global user.email 'github-actions[bot]@users.noreply.github.com'
-            git add .
-            git diff --quiet && git diff --staged --quiet || git commit -m "chore: auto-format with Biome"
-            git push origin HEAD:$BRANCH --force
+      - name: AutoFix
+        uses: autofix-ci/action@551dded8c6cc8a1054039c8bc0b8b48c51dfc6ef