Deps: Bump typed-ast from 1.5.4 to 1.5.5 (#55)

Bumps [typed-ast](https://github.com/python/typed_ast) from 1.5.4 to 1.5.5.
- [Changelog](https://github.com/python/typed_ast/blob/master/release_process.md)
- [Commits](python/typed_ast@1.5.4...1.5.5)

---
updated-dependencies:
- dependency-name: typed-ast
  dependency-type: indirect
  update-type: version-update:semver-patch
...

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