Update pytest requirement from ~=8.3 to >=8.3,<10.0 in the python-dependencies-dev group across 1 directory (#643)

* Update pytest requirement

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

Updates `pytest` to 9.0.0
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@8.3.0...9.0.0)

---
updated-dependencies:
- dependency-name: pytest
  dependency-version: 9.0.0
  dependency-type: direct:development
  dependency-group: python-dependencies-dev
...

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

* Try using only v9

---------

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Casper Welzel Andersen <[email protected]>

Author: dependabot[bot]

pyproject.toml

@@ -50,7 +50,7 @@ docs = [
 testing = [
     "ase~=3.24",
     "numpy>=1.26,<3",
-    "pytest~=8.3",
+    "pytest~=9.0",
     "pytest-celery[redis]~=1.2",
     "pytest-cov~=7.0",
     "redis~=7.0",