change installation of pipenv to curl

Author: dmitry-shibanov

.github/workflows/e2e-cache.yml

@@ -48,7 +48,7 @@ jobs:
           python-version: ${{ matrix.python-version }}
           cache: 'pipenv'
       - name: Install pipenv
-        run: pip install --user pipenv
+        run: curl https://raw.githubusercontent.com/pypa/pipenv/master/get-pipenv.py | python
       - name: Install dependencies
         run: |
           cd __tests__/data
@@ -112,7 +112,7 @@ jobs:
           cache: 'pipenv'
           cache-dependency-path: '**/pipenv-requirements.txt'
       - name: Install pipenv
-        run: pip install --user pipenv
+        run: curl https://raw.githubusercontent.com/pypa/pipenv/master/get-pipenv.py | python
       - name: Install dependencies
         run: |
           cd __tests__/data