Add gitlab ci file (warning: errors are coming)

.gitlab-ci.yml

@@ -0,0 +1,27 @@
+stages:
+  - test
+  - quality-assurance
+
+py38:
+  stage: test
+  image: python:3.8-alpine
+  before_script:
+    - apk add --no-cache libmagic
+    - pip install tox --no-cache-dir
+  script: tox -e py38
+
+py39:
+  stage: test
+  image: python:3.9-alpine
+  before_script:
+    - apk add --no-cache gcc libmagic
+    - pip install tox --no-cache-dir
+  script: tox -e py39
+
+linters:
+  stage: quality-assurance
+  image: python:3-alpine
+  before_script:
+    - pip install tox --no-cache-dir
+  script: tox -e linters
+  allow_failure: true