Bump pymatgen from 2022.8.23 to 2022.9.8

Bumps [pymatgen](https://github.com/materialsproject/pymatgen) from 2022.8.23 to 2022.9.8.
- [Release notes](https://github.com/materialsproject/pymatgen/releases)
- [Changelog](https://github.com/materialsproject/pymatgen/blob/master/CHANGES.rst)
- [Commits](materialsproject/pymatgen@v2022.8.23...v2022.9.8)

---
updated-dependencies:
- dependency-name: pymatgen
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

setup.py

@@ -40,7 +40,7 @@
         'phonopy==2.15.1',
         'pint==0.19.2',
         'pyiron_base==0.5.23',
-        'pymatgen==2022.8.23',
+        'pymatgen==2022.9.8',
         'scipy==1.9.1',
         'seekpath==2.0.1',
         'scikit-learn==1.1.2',