Run the workflow for PRs but don't push the commit

Author: hugovk

.github/workflows/update.yml

@@ -21,7 +21,9 @@ jobs:
       - run: git add .
       - run: git commit -m 'Update progress values'
       - uses: ad-m/github-push-action@master
-        if: github.event_name != 'pull_request'
+        if: |
+          github.repository_owner == 'm-aciek'
+          && github.event_name != 'pull_request'
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           branch: ${{ github.ref }}