Bump pyyaml from 5.4.1 to 6.0 in /perf-tests (#2097)

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] <[email protected]>

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

perf-tests/requirements.txt

@@ -1,4 +1,4 @@
-PyYAML==5.4.1
+PyYAML==6.0
 requests==2.26.0
 kubernetes==18.20.0
 pytest==4.4.1