CI: update-stars, clear of pnpm's own stars; packageManager pins pnpm

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.github/workflows/catalog.yml

@@ -24,8 +24,6 @@ jobs:
         with:
           persist-credentials: false
       - uses: pnpm/action-setup@v6
-        with:
-          version: 11
       - uses: actions/setup-node@v7
         with:
           node-version: 24
@@ -45,14 +43,12 @@ jobs:
         with:
           ref: main
       - uses: pnpm/action-setup@v6
-        with:
-          version: 11
       - uses: actions/setup-node@v7
         with:
           node-version: 24
           cache: pnpm
       - run: pnpm install --frozen-lockfile
-      - run: pnpm stars
+      - run: pnpm run update-stars
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       - run: pnpm validate