Fix ruff check with override

Signed-off-by: Cristian Le <git@lecris.dev>

Author: LecrisUT

tmt/log.py

@@ -41,6 +41,7 @@
 )
 
 from tmt._compat.pathlib import Path
+from tmt._compat.typing import override
 from tmt._compat.warnings import deprecated
 from tmt.container import container, simple_field
 
@@ -314,6 +315,7 @@ def __init__(self, fmt: str, apply_colors: bool = False) -> None:
 
         self._decolorize = create_decolorizer(apply_colors)
 
+    @override
     def formatMessage(self, record: logging.LogRecord) -> str:
         return self._decolorize(super().formatMessage(record))