ruff

0d7ed324 - [ty] Enforce that an attribute on a class `X` must be callable in order to satisfy a member on a protocol `P` (#20142)

[ty] Enforce that an attribute on a class `X` must be callable in order to satisfy a member on a protocol `P` (#20142) ## Summary Small, incremental progress towards checking the types of method members. ## Test Plan Added an mdtest