Merge branch 'master' of https://gitlab.mpcdf.mpg.de/dlce-eva/python-newick

.gitlab-ci.yml

+stages:
+  - test
+
+unit:
+  image: python:3.10
+  stage: test
+  before_script:
+    - python -m pip install --upgrade pip
+    - pip install .[test]
+  script:
+    - pytest