tweak create-release

Author: woutervanwijk

.github/workflows/build-desktop.yml

@@ -133,6 +133,8 @@ jobs:
     needs: [build-macos, build-windows, build-ios, build-android]
     runs-on: ubuntu-latest
     if: startsWith(github.ref, 'refs/tags/')
+    permissions:
+      contents: write
     steps:
       - uses: actions/download-artifact@v4