chore: pin pnpm action in CI

Author: cesarenaldi

.github/workflows/ci.yml

@@ -24,7 +24,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Setup pnpm
-        uses: pnpm/action-setup@v4
+        uses: pnpm/action-setup@41ff72655975bd51cab0327fa583b6e92b6d3061 # v4.2.0
         with:
           version: 10.33.0
           run_install: false