fix: use builtin python action cache for pipenv

.github/workflows/node.js.yml

@@ -33,6 +33,7 @@ jobs:
     - uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
+        cache: 'pipenv'
 
     - name: Cache node_modules
       id: cache-node_modules
@@ -49,12 +50,6 @@ jobs:
         key: elm-cache-${{ hashFiles('elm.json') }}
         restore-keys: elm-cache-
 
-    - name: Cache pipenv virtualenv
-      uses: actions/cache@v4
-      with:
-        path: ~/.local/share/virtualenvs
-        key: ${{ runner.os }}-python-${{ steps.setup-python.outputs.python-version }}-pipenv-${{ hashFiles('Pipfile.lock') }}
-
     - name: Install Node dependencies
       run: npm ci --prefer-offline --no-audit