Add pre-commit hook and use in CI.

tox.ini

@@ -26,14 +26,8 @@ deps =
 
 [testenv:lint]
 basepython = python3.10
-deps =
-    -r requirements/dev.txt
-commands =
-    flake8 django_migration_linter/
-    black --check django_migration_linter/ tests/ manage.py setup.py
-    isort --check-only .
-    mypy django_migration_linter/
-    ruff django_migration_linter/
+deps = pre-commit
+commands = pre-commit run --all-files --show-diff-on-failure
 
 [testenv:coverage]
 commands =