Update update-browserlist-db.yaml

Signed-off-by: Dmitriy Safronov <zimniy@cyberbrain.pw>

.github/workflows/update-browserlist-db.yaml

@@ -28,7 +28,10 @@ jobs:
           github_token: ${{ secrets.PAT }}
           branch: browserslist-update
           base_branch: main
-          commit_message: 'Signed-off-by: GitHub Action <action@github.com>'
+          commit_message: |
+            build: update Browserslist db
+            
+            Signed-off-by: GitHub Action <action@github.com>
           title: 'build: update Browserslist db'
           body: Auto-generated by [browserslist-update-action](https://github.com/c2corg/browserslist-update-action/)
           labels: 'dependencies'