Bump pymatgen from 2023.5.31 to 2023.7.20

Bumps [pymatgen](https://github.com/materialsproject/pymatgen) from 2023.5.31 to 2023.7.20.
- [Release notes](https://github.com/materialsproject/pymatgen/releases)
- [Changelog](https://github.com/materialsproject/pymatgen/blob/master/CHANGES.rst)
- [Commits](materialsproject/pymatgen@v2023.05.31...v2023.7.20)

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

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

pyproject.toml

@@ -74,7 +74,7 @@ strict = [
     "phonopy==2.20.0",
     "pydantic==1.10.9",
     "pymatgen-analysis-defects==2023.7.24",
-    "pymatgen==2023.5.31",
+    "pymatgen==2023.7.20",
     "seekpath==2.1.0",
     "typing-extensions==4.7.1",
 ]