fix for pydantic-core for v2.10

This is problem that mypy picked up since the release of pydantic-core v2.10

sphinx_immaterial/custom_admonitions.py

@@ -136,7 +136,7 @@ def validate_name(cls, val):
 
     @pydantic.field_validator("title")
     @classmethod
-    def validate_title(cls, val, info: pydantic.FieldValidationInfo):
+    def validate_title(cls, val, info: pydantic.ValidationInfo):
         if val is None:
             val = " ".join(
                 re.split(r"[\-_]+", cast(str, info.data.get("name")))