fix(security): autofix 3rd party Github Actions should be pinned (#21)

Co-authored-by: aikido-autofix[bot] <119856028+aikido-autofix[bot]@users.noreply.github.com>

Author: aikido-autofix[bot]

.github/workflows/ci.yml

@@ -20,7 +20,7 @@ jobs:
         uses: actions/checkout@v6
 
       - name: Setup pnpm
-        uses: pnpm/action-setup@v5
+        uses: pnpm/action-setup@fc06bc1257f339d1d5d8b3a19a8cae5388b55320 # v5
 
       - name: Setup Node
         uses: actions/setup-node@v6