Add id-token permission to build-release workflow

Added id-token permission for NuGet Trusted Publish.

Author: mayuki

.github/workflows/build-release.yaml

@@ -47,6 +47,7 @@ jobs:
     needs: [update-packagejson]
     permissions:
       contents: write
+      id-token: write # required for NuGet Trusted Publish
     uses: Cysharp/Actions/.github/workflows/clean-packagejson-branch.yaml@main
     with:
       branch: ${{ needs.update-packagejson.outputs.branch-name }}