fix: add registry-url to setup-node for npm OIDC auth

actions/setup-node requires registry-url to configure .npmrc
with the auth token environment variable for OIDC publishing.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: tianzhou

.github/workflows/publish.yml

@@ -120,6 +120,7 @@ jobs:
         with:
           node-version: "22"
           cache: "pnpm"
+          registry-url: "https://registry.npmjs.org"
 
       - name: Install dependencies
         run: pnpm install --frozen-lockfile