ci(publish-docs): Pin s3 sync

Author: tony

.github/workflows/publish-docs.yml

@@ -105,7 +105,7 @@ jobs:
           pushd docs; make SPHINXBUILD='poetry run sphinx-build' html; popd
 
       - name: Push documentation to S3
-        uses: jakejarvis/s3-sync-action@master
+        uses: jakejarvis/s3-sync-action@v0.5.1
         if: env.PUBLISH == 'true'
         with:
           args: --acl public-read --follow-symlinks --delete