ci: use Node 24 in release for npm 11 OIDC trusted publishing

Node 24 bundles npm 11.13.0 (>= 11.5.1 required for OIDC trusted
publishing), so the separate `npm install -g npm@latest` step is no
longer needed.

Author: fengmk2

.github/workflows/release.yml

@@ -106,10 +106,8 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4
         with:
-          node-version: '22'
-
-      - name: Update npm (OIDC trusted publishing needs npm >= 11.5.1)
-        run: npm install -g npm@latest
+          # Node 24 bundles npm >= 11.5.1, required for OIDC trusted publishing.
+          node-version: '24'
 
       - name: Determine npm dist-tag
         id: dist-tag