Update pytest requirement from ^7.0.1 to >=7.0.1,<9.0.0 (#8700)

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@7.0.1...8.0.0)

---
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>

pyproject.toml

@@ -65,7 +65,7 @@ flake8-quotes = "^3.3.0"
 flake8-docstrings = "^1.6.0"
 flake9 = "^3.8.3"
 codecov = "^2.1.12"
-pytest = "^7.0.1"
+pytest = ">=7.0.1,<9.0.0"
 isort = "^5.10.1"
 poethepoet = ">=0.16,<0.25"
 po2json = "^0.2.2"