chore(deps): bump the dependencies group across 1 directory with 2 updates

Updates the requirements on [pytest](https://github.com/pytest-dev/pytest) and [ruff](https://github.com/astral-sh/ruff) to permit the latest version.

Updates `pytest` 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)

Updates `ruff` to 0.15.20
- [Release notes](https://github.com/astral-sh/ruff/releases)
- [Changelog](https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md)
- [Commits](astral-sh/ruff@0.15.17...0.15.20)

---
updated-dependencies:
- dependency-name: pytest
  dependency-version: 9.1.1
  dependency-type: direct:development
  dependency-group: dependencies
- dependency-name: ruff
  dependency-version: 0.15.18
  dependency-type: direct:development
  dependency-group: dependencies
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pyproject.toml

@@ -18,9 +18,9 @@ classifiers = [
 [dependency-groups]
 dev = [
   "mypy>=2.1.0",
-  "pytest>=9.1.0",
+  "pytest>=9.1.1",
   "pytest-mock>=3.15.1",
-  "ruff>=0.15.17",
+  "ruff>=0.15.20",
   "tomlkit>=0.15.0",
 ]