ci(build): use head_ref instead of ref_name when available

.github/workflows/build.yml

@@ -31,7 +31,7 @@ jobs:
         run: npm run lint
       # Create recursivelly the destiantion dir with
       # "--parrents where no error if existing, make parent directories as needed."
-      - run: mkdir -p ./build/${{ github.ref_name }}
+      - run: mkdir -p ./build/${{ github.head_ref || github.ref_name }}
       - name: Deploy to GitHub Pages
         if: ${{ github.actor != 'dependabot[bot]' }}
         uses: peaceiris/actions-gh-pages@v4
@@ -40,5 +40,5 @@ jobs:
           publish_dir: ./build
           # in stremio, we use `feat/features-name` or `fix/this-bug`
           # so we need a recursive creation of the destination dir
-          destination_dir: ${{ github.ref_name }}
+          destination_dir: ${{ github.head_ref || github.ref_name }}
           allow_empty_commit: true