Enable additional mypy checks (#91)

Author: kasium

_flake8_tergeo/checks/wrappers.py

@@ -23,6 +23,7 @@
 class BugBearPlugin(_BugBearPlugin):
     """BugBearPlugin with custom fixes."""
 
+    @override
     @lru_cache  # noqa: FTP074
     def should_warn(self, code: str) -> bool:
         """Adjust should_warn.

pyproject.toml

@@ -97,6 +97,8 @@ strict = true
 warn_unused_ignores = false
 warn_return_any = false
 disable_error_code = ["type-abstract"]
+enable_error_code = ["explicit-override", "possibly-undefined", "ignore-without-code", "deprecated"]
+strict_bytes = true
 # output
 pretty = true
 show_column_numbers = true