CI: fix setup-node caching failing

Author: sanderegg

.github/workflows/ci-testing-deploy.yml

@@ -1568,7 +1568,6 @@ jobs:
       - uses: actions/[email protected]
         with:
           node-version: ${{ matrix.node }}
-          cache: "npm"
 
       - name: show system version
         run: ./ci/helpers/show_system_versions.bash