chore(deps)(deps-dev): update pytest requirement in the dev-tools group

Updates the requirements on [pytest](https://github.com/pytest-dev/pytest) to permit the latest version.

Updates `pytest` to 9.0.2
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@8.0.0...9.0.2)

---
updated-dependencies:
- dependency-name: pytest
  dependency-version: 9.0.2
  dependency-type: direct:development
  dependency-group: dev-tools
...

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

Author: dependabot[bot]

pyproject.toml

@@ -47,7 +47,7 @@ regilattice = "regilattice.cli:main"
 
 [project.optional-dependencies]
 dev = [
-    "pytest>=8,<9",
+    "pytest>=8,<10",
     "pytest-cov>=7,<8",
     "pytest-mock>=3.14,<4",
     "hypothesis>=6.100,<7",