⬆️ Update pytest requirement (#570)

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@7.4.4...8.3.4)

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

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

dev-requirements.txt

@@ -1,7 +1,7 @@
 chardet==5.1.0
 pytest-cov==4.1.0
 Flask==2.2.3
-pytest>=7.4.4,<=8.3.3
+pytest>=7.4.4,<=8.3.4
 requests==2.31.0
 pre-commit
 build