ci: get coverage for properties

https://github.com/narwhals-dev/narwhals/actions/runs/13723769208/job/38385197942?pr=2149

Author: dangotbanned

narwhals/_arrow/namespace.py

@@ -58,7 +58,7 @@ def _series(self) -> type[ArrowSeries]:
         return ArrowSeries
 
     def _create_compliant_series(self: Self, value: Any) -> ArrowSeries:
-        return ArrowSeries(
+        return self._series(
             native_series=pa.chunked_array([value]),
             name="",
             backend_version=self._backend_version,

narwhals/_arrow/series.py

@@ -118,7 +118,7 @@ def native(self) -> ArrowChunkedArray:
 
     def _change_version(self: Self, version: Version) -> Self:
         return self.__class__(
-            self._native_series,
+            self.native,
             name=self._name,
             backend_version=self._backend_version,
             version=version,