Update pytest requirement from >=8.0 to >=9.0.3

Updates the requirements on [pytest](https://github.com/pytest-dev/pytest) to permit the latest version.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@8.0.0...9.0.3)

---
updated-dependencies:
- dependency-name: pytest
  dependency-version: 9.0.3
  dependency-type: direct:development
...

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

Author: dependabot[bot]

pyproject.toml

@@ -27,7 +27,7 @@ m = "m_cli.cli:main"
 
 [project.optional-dependencies]
 dev = [
-    "pytest>=8.0",
+    "pytest>=9.0.3",
     "pytest-cov",
     "pytest-watch",
     "pytest-randomly",