Resolve "Implement linting"

Closes #2 (closed)

.gitlab-ci.yml

@@ -6,12 +6,22 @@
 # Note that environment variables can be set in several places
 # See https://docs.gitlab.com/ee/ci/variables/#cicd-variable-precedence
 stages:
+- lint
 - test
 sast:
   stage: test
 include:
 - template: Security/SAST.gitlab-ci.yml
 
+black:
+  image: python:3.10-alpine
+  stage: lint
+  before_script:
+    - apk add poetry
+    - poetry install
+  script:
+    - poetry run black --check .
+
 pytest:
   image: python:3.10-alpine
   before_script: