Update stdlib/decimal.pyi

Co-authored-by: Jelle Zijlstra <[email protected]>

Author: donBarbos

stdlib/decimal.pyi

@@ -72,7 +72,7 @@ class Decimal:
     def __new__(cls, value: _DecimalNew = "0", context: Context | None = None) -> Self: ...
     if sys.version_info >= (3, 14):
         @classmethod
-        def from_number(cls, number: float, /) -> Self: ...
+        def from_number(cls, number: Decimal | float, /) -> Self: ...
 
     @classmethod
     def from_float(cls, f: float, /) -> Self: ...