ci: upgrade npm to latest for OIDC trusted publishing

Author: enfp-dev-studio

.github/workflows/release-package.yml

@@ -16,6 +16,8 @@ jobs:
       - uses: actions/setup-node@v4
         with:
           node-version: 22
+      - name: Upgrade npm (OIDC trusted publishing requires npm >= 11.5.1)
+        run: npm install -g npm@latest
       - run: npm ci
       - run: npm run build
       - run: npm publish --provenance --access public