Update pytest requirement from ~=7.4.0 to ~=8.0.0

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@7.4.0...8.0.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

requirements.dev.txt

@@ -2,5 +2,5 @@ anyio>=3.7.1
 autoflake~=2.2.1
 black~=23.12.1
 isort~=5.13.2
-pytest~=7.4.0
+pytest~=8.0.0
 pytest-mock~=3.12.0