[pre-commit.ci] auto fixes from pre-commit.com hooks

Author: pre-commit-ci[bot]

stdlib/dataclasses.pyi

@@ -58,6 +58,7 @@ else:
     #   https://github.com/python/typeshed/pull/5900#issuecomment-895513797
     class _MISSING_TYPE(enum.Enum):
         MISSING = enum.auto()
+
     MISSING: Final = _MISSING_TYPE.MISSING
 
 if sys.version_info >= (3, 15):
@@ -196,7 +197,6 @@ class Field(Generic[_T]):
     if sys.version_info >= (3, 14):
         doc: str | None
 
-
     if sys.version_info >= (3, 14):
         def __init__(
             self,