Bump cffi from 1.15.0 to 1.15.1 in /perf-tests (#2818)

Bumps [cffi](http://cffi.readthedocs.org) from 1.15.0 to 1.15.1.

---
updated-dependencies:
- dependency-name: cffi
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

@@ -3,7 +3,7 @@ requests==2.28.1
 kubernetes==24.2.0
 pytest==7.1.2
 ipaddress==1.0.23 # >= 1.0.17
-cffi==1.15.0
+cffi==1.15.1
 certifi==2022.6.15
 urllib3==1.26.10
 pytest-html==3.1.1