fix: handle no-op case

Author: soridalac

.github/workflows/publishTypedoc.yml

@@ -45,5 +45,6 @@ jobs:
         run: |
           cd docs
           git add .
+          git diff --cached --quiet && echo "No docs changes to publish" && exit 0
           git commit -m 'docs: publishing gh-pages [skip ci]' --no-verify
           git push origin gh-pages --no-verify