Update pyproject.toml (#958)

- [ ] I have read the [Developer
Guide](https://quantum-accelerators.github.io/quacc/dev/contributing.html).
Don't lie! 😉
- [ ] My PR is on a custom branch and is _not_ named `main`.
- [ ] I have added relevant unit tests, if applicable.

pyproject.toml

@@ -51,7 +51,7 @@ tblite = ["tblite[ase]>=0.3.0; platform_system=='Linux'"]
 dev = ["black>=23.7.0", "isort>=5.12.0", "pytest>=7.4.0", "pytest-cov>=3.0.0", "ruff>=0.0.285"]
 docs = [
     "blacken-docs>=1.16.0",
-    "mkdocs-material>=9.1.21",
+    "mkdocs-material>=9.4.0",
     "mkdocstrings[python]>=0.22.0",
     "mkdocs-gen-files>=0.5.0",
     "mkdocs-literate-nav>=0.6.0",