fix: pydantic

Author: tlambert03

src/useq/_plate.py

@@ -23,6 +23,7 @@
     field_validator,
     model_validator,
 )
+from typing_extensions import Annotated
 
 from useq._base_model import FrozenModel, UseqModel
 from useq._grid import RandomPoints, RelativeMultiPointPlan, Shape
@@ -31,7 +32,6 @@
 
 if TYPE_CHECKING:
     from pydantic_core import core_schema
-    from typing_extensions import Annotated
 
     Index = Union[int, List[int], slice]
     IndexExpression = Union[Tuple[Index, ...], Index]