ci: update permissions in CI workflow for npm publish --provenance

Author: rwv

.github/workflows/ci.yml

@@ -187,6 +187,9 @@ jobs:
     if: github.event_name == 'release'
     environment:
       name: npm
+    permissions:
+      contents: read
+      id-token: write
 
     steps:
       - name: Checkout