Add unused-ignore to TypeAlias import ignore

Author: Евгений Блинов

metacode/typing.py

@@ -3,7 +3,7 @@
 
 # TODO: delete this catch blocks and "type: ignore" if minimum supported version of Python is > 3.9.
 try:
-    from typing import TypeAlias  # type: ignore[attr-defined]
+    from typing import TypeAlias  # type: ignore[attr-defined, unused-ignore]
 except ImportError:  # pragma: no cover
     from typing_extensions import TypeAlias