Bump typing-extensions from 3.10.0.2 to 4.0.1 (#1177)

Bumps [typing-extensions](https://github.com/python/typing) from 3.10.0.2 to 4.0.1.
- [Release notes](https://github.com/python/typing/releases)
- [Changelog](https://github.com/python/typing/blob/master/typing_extensions/CHANGELOG)
- [Commits](python/typing@3.10.0.2...4.0.1)

---
updated-dependencies:
- dependency-name: typing-extensions
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

poetry.lock

@@ -56,7 +56,7 @@ _ = "returns.contrib.hypothesis._entrypoint"
 [tool.poetry.dependencies]
 python = "^3.7"
 
-typing-extensions = "^3.7"
+typing-extensions = ">=3.7,<5.0"
 
 [tool.poetry.dev-dependencies]
 anyio = "^3.4"