chore(deps): update actions-js/push action to v1.6 (#409)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/jekyll-build.yml

@@ -269,7 +269,7 @@ jobs:
           touch .nojekyll
 
       - name: Deploy to gh-pages
-        uses: actions-js/push@5a7cbd780d82c0c937b5977586e641b2fd94acc5  # v1.5
+        uses: actions-js/push@968f4695ca558093eadb24ad83cc5891f47e0cdc  # v1.6
         with:
           github_token: ${{ secrets.GH_BOT_TOKEN }}
           author_email: ${{ secrets.GH_BOT_EMAIL }}