build(deps-dev): update pytest requirement from <8.0,>=7.0 to >=7.0,<9.0

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@7.0.0...8.0.0)

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

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

pyproject.toml

@@ -65,12 +65,12 @@ gui = [
 dev = [
     "black>=19.0",
     "isort>=4.3",
-    "pytest>=7.0,<8.0",
+    "pytest>=7.0,<9.0",
     "pytest-cov>=3.0,<5.0",
     "pytest-datadir>=1.0,<2.0",
     "nox>=2022",
 ]
-test = ["pytest>=7.0,<8.0", "pytest-cov>=3.0,<5.0", "pytest-datadir>=1.0,<2.0"]
+test = ["pytest>=7.0,<9.0", "pytest-cov>=3.0,<5.0", "pytest-datadir>=1.0,<2.0"]
 
 [tool.pytest.ini_options]
 testpaths = ["tests"]