Bump pyperf from 2.8.0 to 2.8.1

Bumps [pyperf](https://github.com/psf/pyperf) from 2.8.0 to 2.8.1.
- [Release notes](https://github.com/psf/pyperf/releases)
- [Changelog](https://github.com/psf/pyperf/blob/main/doc/changelog.rst)
- [Commits](psf/pyperf@2.8.0...2.8.1)

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

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

Author: dependabot[bot]

pyproject.toml

@@ -16,7 +16,7 @@ classifiers = [
 ]
 dependencies = [
     "matplotlib==3.9.0",
-    "pyperf==2.8.0",
+    "pyperf==2.8.1",
     "rich==13.9.4",
     "rich-argparse==1.6.0",
     "ruamel.yaml==0.18.6",