Fix ci-matrix pre-commit hook

- Remove dependency of pydblite which fails to setup on recent pythons
- Discard shell script and put everything into pre-commit

.gitlab-ci/lint.yml

@@ -123,4 +123,5 @@ ci-matrix:
   tags: [light]
   image: python:3
   script:
-    - tests/scripts/md-table/test.sh
+    - tests/scripts/md-table/main.py
+    - git diff --exit-code