Force npm self-install in release workflow

Works around npm's "Cannot find module 'promise-retry'" error when
upgrading to npm 11.6 over the npm 10.x bundled with Node 22.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Author: mishushakov

.github/workflows/release.yml

@@ -345,7 +345,7 @@ jobs:
 
       - name: Update npm
         run: |
-          npm install -g npm@^11.6
+          npm install -g --force npm@^11.6
           npm --version
 
       - name: Install dependencies