Add committer info

Author: Robert Mosolgo

.github/workflows/website.yaml

@@ -27,7 +27,12 @@ jobs:
         env:
           ALGOLIA_API_KEY: ${{ secrets.ALGOLIA_API_KEY }}
         run: |
-          bundle exec rake site:build_doc site:update_search_index site:clean_html site:build_html site:commit_changes
+          bundle exec rake site:build_doc site:update_search_index site:clean_html site:build_html
+      - name: Commit changes as last committer
+        run: |
+          git config user.name "%(git log --format="%aN" -n 1)"
+          git config user.email "%(git log --format="%aE" -n 1)"
+          bundle exec rake site:commit_changes
       - name: Deploy to GitHub pages via gh-pages branch
         uses: s0/git-publish-subdir-action@master
         env: