ensure write permission to create GH release

Author: 2bndy5

.github/workflows/wheels.yml

@@ -131,6 +131,8 @@ jobs:
   pypi:
     if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v')
     needs: [build_wheels, build_wheels_ppc]
+    permissions:
+      contents: write # to create GitHub Release
     runs-on: ubuntu-24.04
 
     steps: