ignore __eq__ / __ne__ incompatible overrides

the implementation really doesn't allow other objects being passed, and I see other stubs doing this, so I presume it's okay?

Author: mildsunrise

stubs/cffi/_cffi_backend.pyi

@@ -96,8 +96,8 @@ class buffer:
     __hash__: ClassVar[None]  # type: ignore[assignment]
     def __new__(cls, cdata: _CDataBase, size: int = -1) -> Self: ...
     def __buffer__(self, flags: int, /) -> memoryview: ...
-    def __eq__(self, other: ReadableBuffer, /) -> bool: ...
-    def __ne__(self, other: ReadableBuffer, /) -> bool: ...
+    def __eq__(self, other: ReadableBuffer, /) -> bool: ...  # type: ignore[override]
+    def __ne__(self, other: ReadableBuffer, /) -> bool: ...  # type: ignore[override]
     def __ge__(self, other: ReadableBuffer, /) -> bool: ...
     def __gt__(self, other: ReadableBuffer, /) -> bool: ...
     def __le__(self, other: ReadableBuffer, /) -> bool: ...