fix(ci): remove broken npm install -g npm@latest from publish job

Node 22.22.2 runner has a corrupted npm that fails with
"Cannot find module 'promise-retry'" when trying to self-upgrade.
The bundled npm is sufficient for npm publish.

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

Author: guo-yu

.github/workflows/release.yml

@@ -64,7 +64,6 @@ jobs:
         with:
           node-version: 22
           registry-url: https://registry.npmjs.org
-      - run: npm install -g npm@latest
       - run: bun install
       - run: bun run build
       - run: bun run typecheck