ci: add required permissions to publish-release job

Add explicit permissions for the publish-release job in the GitHub Actions
release workflow. The job now has:
- id-token: write - Required for authentication with package registries
- contents: write - Required for creating GitHub releases

These permissions are necessary for the job to successfully publish
release artifacts and create GitHub releases as part of the automated
release process.

Author: CaddyGlow

.github/workflows/release.yml

@@ -130,6 +130,9 @@ jobs:
     needs: [build-package, build-release-docker]
     runs-on: ubuntu-latest
 
+    permissions:
+      id-token: write
+      contents: write
     steps:
       - uses: actions/checkout@v4