adapt pytest workflow to changed requirements handling

Signed-off-by: Matthias Büchse <[email protected]>

Author: mbuechse

.github/workflows/test-python.yml

@@ -7,6 +7,8 @@ name: Run Python unit and regression tests
       - '**.py'
       - .github/workflows/test-python.yml
       - Tests/requirements.txt
+      - Tests/iaas/requirements.txt
+      - Tests/kaas/requirements.txt
       - Tests/test-requirements.txt
 
 jobs:
@@ -20,9 +22,11 @@ jobs:
           cache: 'pip'
           cache-dependency-path: |
             Tests/requirements.txt
+            Tests/iaas/requirements.txt
+            Tests/kaas/requirements.txt
             Tests/test-requirements.txt
       - run: pip3 install --upgrade pip setuptools
-      - run: pip3 install -r requirements.txt -r test-requirements.txt
+      - run: pip3 install -r requirements.txt -r iaas/requirements.txt -r kaas/requirements.txt -r test-requirements.txt
         working-directory: ./Tests
       - run: pytest --cov
         working-directory: ./Tests