Bump pyyaml from 5.3.1 to 6.0

Bumps [pyyaml](https://github.com/yaml/pyyaml) from 5.3.1 to 6.0.
- [Release notes](https://github.com/yaml/pyyaml/releases)
- [Changelog](https://github.com/yaml/pyyaml/blob/master/CHANGES)
- [Commits](yaml/pyyaml@5.3.1...6.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

poetry.lock

@@ -29,7 +29,7 @@ colorama = {version = "^0.4.3", markers = "sys_platform == 'win32'"}
 shellingham = "^1.3.2"
 black = ">=20.8b1"
 isort = "^5.0.5"
-pyyaml = "^5.3.1"
+pyyaml = ">=5.3.1,<7.0.0"
 importlib_metadata = {version = ">=4.4", python = "<3.8"}
 pydantic = "^1.6.1"
 attrs = ">=20.1.0, <22.0"