build(deps-dev): update pytest-benchmark requirement (#124)

Updates the requirements on [pytest-benchmark](https://github.com/ionelmc/pytest-benchmark) to permit the latest version.
- [Changelog](https://github.com/ionelmc/pytest-benchmark/blob/master/CHANGELOG.rst)
- [Commits](ionelmc/pytest-benchmark@v4.0.0...v5.2.3)

---
updated-dependencies:
- dependency-name: pytest-benchmark
  dependency-version: 5.2.3
  dependency-type: direct:development
...

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Author: dependabot[bot]

pyproject.toml

@@ -31,7 +31,7 @@ desktop = ["pywebview>=5.0,<7"]
 # Development tooling: testing + type checking.
 dev = [
     "pytest>=8,<9",
-    "pytest-benchmark>=4,<5",
+    "pytest-benchmark>=4,<6",
     "mypy>=1.10,<2",
     "hypothesis>=6.100,<7",
     "playwright==1.50.0",