* main:
  [ty] Take myself out of the reviewer pool for the next few days (#23618)
  [ty] Fix bug where ty would think that a `Callable` with a variadic positional parameter could be a subtype of a `Callable` with a positional-or-keyword parameter (#23610)
  [`ruff`] Add fix for `none-not-at-end-of-union` (`RUF036`)  (#22829)
  Bump cargo dist to 0.31 (#23614)
  [`pyflakes`] Fix false positive for names shadowing re-exports (`F811`) (#23356)
  [`fastapi`] Handle callable class dependencies with `__call__` method (`FAST003`) (#23553)
  [ty] Recurse into tuples and nested tuples when applying special-cased validation of `isinstance()` and `issubclass()` (#23607)
  Update typing conformance suite commit (#23606)
  [ty] Detect invalid uses of `@final` on non-methods (#23604)
  [ty] Move the type hierarchy request handlers to individual modules
  [ty] Wire up the type hierarchy implementation with the LSP
  [ty] Add routine for mapping from system path to vendored path
  [ty] Implement internal routines for providing the LSP "type hierarchy" feature
  [ty] Add some helper methods on `ClassLiteral`
  [ty] Move some module name helper routines to methods on `ModuleName`
  [ty] Bump version of `lsp-types`
  [ty] Refactor to support building constraint sets differently (#23600)
  [ty] Dataclass transform: neither frozen nor non-frozen (#23366)
  [ty] Add snapshot tests for advanced `invalid-assignment` scenarios (#23581)
  [ty] disallow negative narrowing on SubclassOf types (#23598)