Add the write permission for id-token to make OIDC work with pypi

Author: phillipuniverse

.github/workflows/publish.yml

@@ -9,6 +9,8 @@ jobs:
   publish:
     runs-on: ubuntu-latest
     environment: pypi
+    permissions:
+      id-token: write
     steps:
     - uses: actions/checkout@v2
     - name: Set up Python