chore: Updates pnpm setup

Removes the explicit pnpm version setup.

This allows the workflow to use the default or latest
available version, simplifying maintenance and potentially
benefiting from automatic updates and bug fixes.

Author: mustafagenc

.github/workflows/codecov.yml

@@ -15,8 +15,6 @@ jobs:
 
       - name: Set up pnpm
         uses: pnpm/action-setup@v4
-        with:
-          version: 10
 
       - name: Set up Node.js
         uses: actions/setup-node@v4