chore(deps-dev): update pytest requirement in /unicorn_web

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@9.0.2...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]

unicorn_web/pyproject.toml

@@ -23,7 +23,7 @@ dev = [
     "importlib-metadata>=8.7.1",
     "pyyaml>=6.0.3",
     "arnparse>=0.0.2",
-    "pytest>=9.0.2",
+    "pytest>=9.0.3",
     "ruff>=0.15.6",
 ]