build(deps-dev): bump pytest in the benchmark-tooling group (#785)

Bumps the benchmark-tooling group with 1 update: [pytest](https://github.com/pytest-dev/pytest).


Updates `pytest` from 9.1.0 to 9.1.1
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@9.1.0...9.1.1)

---
updated-dependencies:
- dependency-name: pytest
  dependency-version: 9.1.1
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: benchmark-tooling
...

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

Author: dependabot[bot]

pyproject.toml

@@ -93,7 +93,7 @@ benchmarks = [
     "pandas==3.0.3",
     "polars==1.41.2",
     "dask==2026.6.0",
-    "pytest==9.1.0",
+    "pytest==9.1.1",
     "pytest-benchmark==5.2.3",
     "pytest-memray==1.8.0",
     "pytest-codspeed==5.0.3",