added author identity config

.github/workflows/pr_ci_playwright_e2e.yaml

@@ -61,7 +61,7 @@ jobs:
             git rm -rf .
             echo "# GitHub Pages" > index.html
             git add index.html
-            git commit -m "Initial commit"
+            git -c user.name='github-actions[bot]' -c user.email='github-actions[bot]@users.noreply.github.com' commit -m "Initial commit"
             git push origin gh-pages
           fi
 
@@ -117,5 +117,5 @@ jobs:
           cp -r ../frontend/playwright-report/* .
           # Committing and pushing the changes
           git add .
-          git commit -m "Update Playwright report"
+          git -c user.name='github-actions[bot]' -c user.email='github-actions[bot]@users.noreply.github.com' commit -m "Update Playwright report"
           git push origin gh-pages