Update GitHub Actions workflow to allow writing release assets and token contents.

- Allow writing of release asset contents.
- Grant permission to write token contents in the workflow.

Author: yankeexe

.github/workflows/release.yml

@@ -10,6 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     permissions:
       id-token: write
+      contents: write
     steps:
       - name: Checkout
         uses: actions/checkout@v4