chore(deps-dev): update pytest requirement from >=8.0.0 to >=9.0.3 (#101)

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

Author: dependabot[bot]

pyproject.toml

@@ -21,7 +21,7 @@ proto = [
     "structlog==25.5.0",
 ]
 dev = [
-    "pytest>=8.0.0",
+    "pytest>=9.0.3",
     "pytest-asyncio==1.3.0",
     "pre-commit>=4.5.1",
 ]