Add files to .gitignore and other improvements.

.gitignore

@@ -13,3 +13,8 @@ env/
 .tox/
 *.sqlite3
 *.pickle
+.mypy_cache/
+.ruff_cache/
+venv/
+.python-version
+sqlite3

.pre-commit-config.yaml

@@ -28,7 +28,6 @@ repos:
     rev: 5.11.4
     hooks:
       - id: isort
-
   - repo: https://github.com/pre-commit/mirrors-mypy
     rev: v0.991
     hooks:

CHANGELOG.md

@@ -11,8 +11,8 @@ The crash is a sign to double-check the migration. But if you are certain the mi
 - Drop support for Django 2.2
 - Internally rename "migration tests" to "migration checks"
 - Add dataclasses internally instead of custom dicts
-- Use pre-commit hooks instead for linting
+- Use pre-commit hooks for linting
-- Add type checking using `mypy` and `ruff`
+- Add `mypy` and `ruff` usages
 
 ## 4.1.0