Finalize copilot-setup-steps.yml - remove unnecessary Node.js caching

Co-authored-by: BenjaminMichaelis <22186029+BenjaminMichaelis@users.noreply.github.com>

Author: Copilot

.github/workflows/copilot-setup-steps.yml

@@ -66,8 +66,6 @@ jobs:
         uses: actions/setup-node@v4
         with:
           node-version: '20'
-          cache: 'npm'
-          cache-dependency-path: '**/package-lock.json'
 
       - name: Install additional development tools
         run: |