fix: use valid release condition expression

Author: NemoAlex

.github/workflows/desktop-release.yml

@@ -120,7 +120,7 @@ jobs:
 
     steps:
       - name: Skip release for non-tag builds
-        if: ${{ !startsWith(github.ref, 'refs/tags/') }}
+        if: startsWith(github.ref, 'refs/tags/') == false
         run: echo "Desktop artifacts were validated; a GitHub Release is created only for version tags."
 
       - name: Download desktop artifacts