Bump pytest from 7.3.1 to 7.4.0 in /third_party/airflow

Bumps [pytest](https://github.com/pytest-dev/pytest) from 7.3.1 to 7.4.0.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@7.3.1...7.4.0)

---
updated-dependencies:
- dependency-name: pytest
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

third_party/airflow/pyproject.toml

@@ -20,7 +20,7 @@ readme = "README.md"
 
 [project.optional-dependencies]
 format = ["black==23.3.0", "flake8==6.0.0", "pylint==2.17.4"]
-test = ["pytest==7.3.1", "coverage>=6.5.0", "pytest-asyncio==0.21.0"]
+test = ["pytest==7.4.0", "coverage>=6.5.0", "pytest-asyncio==0.21.0"]
 # note(JayF): sphinx-jekyll-builder was broken by sphinx-markdown-builder 0.6 -- so pin to 0.5.5
 docs = ["sphinx==7.0.1", "sphinx-jekyll-builder==0.3.0", "sphinx-toolbox==3.2.0b1", "sphinx-markdown-builder==0.5.5"]