Update CI script

Author: raphaelm

{{cookiecutter.repo_name}}/.gitlab-ci.yml

@@ -1,42 +1,40 @@
 test:
+    image:
+        name: pretix/ci-image
+    before_script:
+        - pip install -U pip uv
+        - uv pip install --system -U wheel setuptools pytest pytest-django coverage
+        - uv pip install --system -U git+https://github.com/pretix/pretix.git@master#egg=pretix
     script:
-        - cp /keys/.pypirc ~/.pypirc
-        - virtualenv /tmp/env
-        - source /tmp/env/bin/activate
-        - XDG_CACHE_HOME=/cache pip3 install -U pip wheel setuptools pytest pytest-django coverage
-        - XDG_CACHE_HOME=/cache pip3 install -U "git+https://github.com/pretix/pretix.git@master#egg=pretix"
-        - python setup.py develop
+        - uv pip install --system -e .
         - make
         - coverage run -m pytest tests
         - coverage report
-    tags:
-        - python3
 style:
+    image:
+        name: pretix/ci-image
+    before_script:
+        - pip install -U pip uv
+        - uv pip install --system -U wheel setuptools isort black flake8 check-manifest
+        - uv pip install --system -U git+https://github.com/pretix/pretix.git@master#egg=pretix
     script:
-        - cp /keys/.pypirc ~/.pypirc
-        - virtualenv /tmp/env
-        - source /tmp/env/bin/activate
-        - XDG_CACHE_HOME=/cache pip3 install -U pip wheel setuptools isort black flake8 check-manifest
-        - XDG_CACHE_HOME=/cache pip3 install -U "git+https://github.com/pretix/pretix.git@master#egg=pretix"
-        - python setup.py develop
+        - uv pip install --system -e .
         - black --check .
-        - isort -c .
-        - flake8 .
-        - check-manifest .
-    tags:
-        - python3
+        - isort -c --gitignore .
+        - flake8 --extend-exclude .cache .
+        - check-manifest --ignore .cache .
 pypi:
+    image:
+        name: pretix/ci-image
+    before_script:
+        - cat $PYPIRC > ~/.pypirc
+        - pip install -U pip uv
+        - uv pip install --system -U wheel setuptools twine build pretix-plugin-build check-manifest
     script:
-        - cp /keys/.pypirc ~/.pypirc
-        - virtualenv /tmp/env
-        - source /tmp/env/bin/activate
-        - XDG_CACHE_HOME=/cache pip3 install -U pip wheel setuptools twine build pretix-plugin-build check-manifest
         - python -m build
         - check-manifest .
         - twine check dist/*
         - twine upload dist/*
-    tags:
-        - python3
     only:
         - pypi
     artifacts: