Install pip and pipenv

Author: Steve Ayers

.github/workflows/ci.yaml

@@ -33,8 +33,7 @@ jobs:
         with:
           python-version: ${{ matrix.python-version }}
           cache: "pipenv"
-      - name: Run image
-        uses: tiagovrtr/actions-pipenv@v1
+      - run: ${{steps.python.outputs.python-path}}  -m pip install --upgrade pip pipenv
       - name: Execute tests
         run: make test PYTHON=${{ steps.python.outputs.python-path }}
       - name: Lint