fix(lint): suppress UP046 warning for Generic type hint

Add noqa comment to BaseMetric class to suppress linting warning
about Generic type hint syntax.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: AmitMY

pose_evaluation/metrics/base.py

@@ -97,7 +97,7 @@ def __repr__(self):
         return self.format()
 
 
-class BaseMetric(Generic[T], ABC):
+class BaseMetric(Generic[T], ABC):  # noqa: UP046
     """Base class for all metrics."""
 
     _SIGNATURE_TYPE = Signature