test: Freeze pipenv version to 2021.11.5

Author: pgrzesik

.github/workflows/integrate.yml

@@ -48,7 +48,7 @@ jobs:
         run: python -m pip install --force setuptools wheel
 
       - name: Install pipenv / poetry
-        run: python -m pip install pipenv poetry
+        run: python -m pip install pipenv==2021.11.5 poetry
 
       - name: Install serverless
         run: npm install -g serverless@2
@@ -99,7 +99,7 @@ jobs:
         run: python -m pip install --force setuptools wheel
 
       - name: Install pipenv / poetry
-        run: python -m pip install pipenv poetry
+        run: python -m pip install pipenv==2021.11.5 poetry
 
       - name: Install serverless
         run: npm install -g serverless@2
@@ -150,7 +150,7 @@ jobs:
         run: python -m pip install --force setuptools wheel
 
       - name: Install pipenv / poetry
-        run: python -m pip install pipenv poetry
+        run: python -m pip install pipenv==2021.11.5 poetry
 
       - name: Install serverless
         run: npm install -g serverless@2

.github/workflows/validate.yml

@@ -61,7 +61,7 @@ jobs:
         run: python -m pip install --force setuptools wheel
 
       - name: Install pipenv / poetry
-        run: python -m pip install pipenv poetry
+        run: python -m pip install pipenv==2021.11.5 poetry
 
       - name: Install serverless
         run: npm install -g serverless@2
@@ -128,7 +128,7 @@ jobs:
         run: python -m pip install --force setuptools wheel
 
       - name: Install pipenv / poetry
-        run: python -m pip install pipenv poetry
+        run: python -m pip install pipenv==2021.11.5 poetry
 
       - name: Install serverless
         run: npm install -g serverless@2
@@ -181,7 +181,7 @@ jobs:
         run: python -m pip install --force setuptools wheel
 
       - name: Install pipenv / poetry
-        run: python -m pip install pipenv poetry
+        run: python -m pip install pipenv==2021.11.5 poetry
 
       - name: Install serverless
         run: npm install -g serverless@2