ci(actions): Keep new releases from being made for non-semver GH Actions series tags

Author: alerque

.github/workflows/build.yml

@@ -49,7 +49,7 @@ jobs:
           path: fontship-${{ env.VERSION }}.zip
       - name: Release
         uses: softprops/action-gh-release@v2
-        if: github.repository == 'theleagueof/fontship' && startsWith(github.ref, 'refs/tags/v')
+        if: github.repository == 'theleagueof/fontship' && startsWith(github.ref, 'refs/tags/v') && contains(github.ref, '.')
         with:
           body_path: fontship-${{ env.VERSION }}.md
           files: |