chore: Update npm for OIDC trusted publishing support

- Use Node.js 22
- Install npm@latest (requires >= 11.5.1 for OIDC)
- Remove --provenance flag (automatic with trusted publishing)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

.github/workflows/release.yml

@@ -82,12 +82,16 @@ jobs:
       - name: Set up Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: '20'
+          node-version: '22'
+          registry-url: 'https://registry.npmjs.org'
+
+      - name: Update npm for OIDC support
+        run: npm install -g npm@latest
 
       - name: Publish to npm
         run: |
           cd npm-package
-          npm publish --access public --provenance
+          npm publish --access public
 
   update-homebrew:
     runs-on: ubuntu-latest