Merge branch 'fix-pipeline' into 'main'

Fix CI pipeline and remove version pinning in setup script

See merge request !113

.gitlab-ci.yml

-image: python:3.7
+image: python:3.9
 
 services:
   - mysql:5.7
@@ -17,7 +17,7 @@ cache:
 before_script:
   - python -V  # Print out python version for debugging
   - apt-get -qq update
-  - apt-get -qq install -y python-virtualenv python3 python3-dev python3-pip gettext default-libmysqlclient-dev
+  - apt-get -qq install -y python3-virtualenv python3 python3-dev python3-pip gettext default-libmysqlclient-dev
   - export DJANGO_SETTINGS_MODULE=AKPlanning.settings_ci
   - ./Utils/setup.sh --prod
 

Utils/setup.sh

@@ -10,7 +10,7 @@ rm -rf venv/
 
 # Setup Python Environment
 # Requires: Virtualenv, appropriate Python installation
-virtualenv venv -p python3.7
+virtualenv venv -p python3.9
 source venv/bin/activate
 pip install --upgrade setuptools pip wheel
 pip install -r requirements.txt