Update enums to reflect typing spec changes

See https://typing.readthedocs.io/en/latest/spec/enums.html#defining-members

python/typing-council#11

The next version of mypy will obey the spec change:
python/mypy#18068

pyright already requires this

pandas-stubs/_libs/tslibs/dtypes.pyi

@@ -1,4 +1,5 @@
 from enum import Enum
+from typing import cast
 
 from .offsets import BaseOffset
 
@@ -29,16 +30,16 @@ class FreqGroup:
     def get_freq_group(code: int) -> int: ...
 
 class Resolution(Enum):
-    RESO_NS: int
-    RESO_US: int
-    RESO_MS: int
-    RESO_SEC: int
-    RESO_MIN: int
-    RESO_HR: int
-    RESO_DAY: int
-    RESO_MTH: int
-    RESO_QTR: int
-    RESO_YR: int
+    RESO_NS = cast(int, ...)
+    RESO_US = cast(int, ...)
+    RESO_MS = cast(int, ...)
+    RESO_SEC = cast(int, ...)
+    RESO_MIN = cast(int, ...)
+    RESO_HR = cast(int, ...)
+    RESO_DAY = cast(int, ...)
+    RESO_MTH = cast(int, ...)
+    RESO_QTR = cast(int, ...)
+    RESO_YR = cast(int, ...)
 
     def __lt__(self, other) -> bool: ...
     def __ge__(self, other) -> bool: ...

pandas-stubs/core/interchange/dataframe_protocol.pyi

@@ -11,33 +11,34 @@ import enum
 from typing import (
     Any,
     TypedDict,
+    cast
 )
 
 class DlpackDeviceType(enum.IntEnum):
-    CPU: int
-    CUDA: int
-    CPU_PINNED: int
-    OPENCL: int
-    VULKAN: int
-    METAL: int
-    VPI: int
-    ROCM: int
+    CPU = cast(int, ...)
+    CUDA = cast(int, ...)
+    CPU_PINNED = cast(int, ...)
+    OPENCL = cast(int, ...)
+    VULKAN = cast(int, ...)
+    METAL = cast(int, ...)
+    VPI = cast(int, ...)
+    ROCM = cast(int, ...)
 
 class DtypeKind(enum.IntEnum):
-    INT: int
-    UINT: int
-    FLOAT: int
-    BOOL: int
-    STRING: int
-    DATETIME: int
-    CATEGORICAL: int
+    INT = cast(int, ...)
+    UINT = cast(int, ...)
+    FLOAT = cast(int, ...)
+    BOOL = cast(int, ...)
+    STRING = cast(int, ...)
+    DATETIME = cast(int, ...)
+    CATEGORICAL = cast(int, ...)
 
 class ColumnNullType(enum.IntEnum):
-    NON_NULLABLE: int
-    USE_NAN: int
-    USE_SENTINEL: int
-    USE_BITMASK: int
-    USE_BYTEMASK: int
+    NON_NULLABLE = cast(int, ...)
+    USE_NAN = cast(int, ...)
+    USE_SENTINEL = cast(int, ...)
+    USE_BITMASK = cast(int, ...)
+    USE_BYTEMASK = cast(int, ...)
 
 class ColumnBuffers(TypedDict):
     data: tuple[Buffer, Any]