unpin pnpm version

Author: iainnash

.github/workflows/build.yml

@@ -12,8 +12,6 @@ jobs:
 
       - uses: pnpm/action-setup@v4
         name: Install pnpm
-        with:
-          version: 10.18.2
 
       - name: Build 🏗️
         run: pnpm build