Bump pymatgen from 2024.4.13 to 2024.5.31

Bumps [pymatgen](https://github.com/materialsproject/pymatgen) from 2024.4.13 to 2024.5.31.
- [Release notes](https://github.com/materialsproject/pymatgen/releases)
- [Changelog](https://github.com/materialsproject/pymatgen/blob/master/docs/CHANGES.md)
- [Commits](materialsproject/pymatgen@v2024.4.13...v2024.5.31)

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

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

requirements.txt

@@ -1,4 +1,4 @@
-pymatgen==2024.4.13
+pymatgen==2024.5.31
 scipy==1.13.0
 monty==2024.4.17
 matplotlib==3.8.4