Add build ci

.gitlab-ci.yml

 stages:
   - test
+  - build
 
 mdcheck:
   stage: test
@@ -16,3 +17,17 @@ pylint:
     - if [ -f pip-upgradedependencies.egg-info/requires.txt ]; then pip install $(paste -d " " -s pip-upgradedependencies.egg-info/requires.txt); fi
     - pip install better-setuptools-git-version
     - pylint $(find . -type f -name "*.py")
+
+build:
+  stage: build
+  image: it4innovations/docker-pypi:latest
+  artifacts:
+    expire_in: 1 day
+    paths:
+      - dist/pipupgradedependencies*tar.gz
+  script:
+    - export PYTHONIOENCODING=UTF-8
+    - export LC_CTYPE=en_US.UTF-8
+    - pip install setuptools-git-version setuptools-markdown
+    - python setup.py --version
+    - python setup.py sdist