Bump kubernetes from 25.3.0 to 26.1.0 in /perf-tests (#3567)

Bumps [kubernetes](https://github.com/kubernetes-client/python) from 25.3.0 to 26.1.0.
- [Release notes](https://github.com/kubernetes-client/python/releases)
- [Changelog](https://github.com/kubernetes-client/python/blob/master/CHANGELOG.md)
- [Commits](kubernetes-client/python@v25.3.0...v26.1.0)

---
updated-dependencies:
- dependency-name: kubernetes
  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>

Author: dependabot[bot]

perf-tests/requirements.txt

@@ -1,6 +1,6 @@
 certifi==2022.12.7
 cffi==1.15.1
-kubernetes==25.3.0
+kubernetes==26.1.0
 locust==2.14.2
 pytest==7.2.1
 pytest-html==3.2.0