Bump pyyaml from 5.4.1 to 6.0

Bumps [pyyaml](https://github.com/yaml/pyyaml) from 5.4.1 to 6.0.
- [Release notes](https://github.com/yaml/pyyaml/releases)
- [Changelog](https://github.com/yaml/pyyaml/blob/master/CHANGES)
- [Commits](yaml/pyyaml@5.4.1...6.0)

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

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements-test.txt

@@ -4,4 +4,4 @@ cython==0.29.23
 # Dependencies
 Click==8.0.1
 # pillow==8.3.1
-pyyaml==5.4.1
+pyyaml==6.0

setup.py

@@ -87,7 +87,7 @@
     install_requires=[
         "Click==8.0.1",
         # "pillow==8.3.1",
-        "pyyaml==5.4.1",
+        "pyyaml==6.0",
     ],
     long_description=README,
     long_description_content_type="text/markdown",