build(deps-dev): update pytest requirement from <8,>=7 to >=7,<9

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

@@ -102,7 +102,7 @@ tests = [
     "dvc-ssh",
     "filelock",
     "flaky",
-    "pytest<8,>=7",
+    "pytest>=7,<9",
     "pytest-cov>=4.1.0",
     "pytest-docker>=1,<3",
     "pytest-lazy-fixture",