added gitlab ci

.gitlab-ci.yml

@@ -0,0 +1,21 @@
+stages:
+  - test
+
+test:
+  stage: test
+  image: python:3.11-bookworm
+  variables:
+    DJANGO_SETTINGS_MODULE: foerderbarometer.settings
+    ENVIRONMENT: test
+    SECRET_KEY: this-is-not-a-secret-key
+    DATABASE_ENGINE: sqlite3
+    OAUTH_ENABLED: no
+  tags:
+    - docker
+  coverage: /(?i)total.*? (100(?:\.0+)?\%|[1-9]?\d(?:\.\d+)?\%)$/
+  before_script:
+    - pip install -r requirements.txt coverage
+  script:
+    - coverage run manage.py test --noinput
+  after_script:
+    - coverage report