refactor(import[options]) Use simple assignment on non-frozen dataclass

why: ImportOptions is not frozen, so object.__setattr__ is unnecessary.
what:
- Replace object.__setattr__(self, "limit", sys.maxsize) with self.limit = sys.maxsize

Author: tony

src/vcspull/_internal/remotes/base.py

@@ -268,7 +268,7 @@ def __post_init__(self) -> None:
             msg = f"limit must be >= 0, got {self.limit}"
             raise ValueError(msg)
         if self.limit == 0:
-            object.__setattr__(self, "limit", sys.maxsize)
+            self.limit = sys.maxsize
 
 
 class HTTPClient: