feat: github actions config

Author: Stanislav Pelak

.github/workflows/nextjs.yml

@@ -84,6 +84,7 @@ jobs:
 
   # Deployment job
   deploy:
+    if: ${{ startsWith(github.ref, 'refs/tags/') }}
     environment:
       name: github-pages
       url: ${{ steps.deployment.outputs.page_url }}