Bump emmet-core from 0.70.6 to 0.81.1

Bumps [emmet-core](https://github.com/materialsproject/emmet) from 0.70.6 to 0.81.1.
- [Release notes](https://github.com/materialsproject/emmet/releases)
- [Changelog](https://github.com/materialsproject/emmet/blob/main/docs/CHANGELOG.md)
- [Commits](materialsproject/emmet@v0.70.6...v0.81.1)

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

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

requirements.txt

@@ -4,7 +4,7 @@ pymongo==3.12.0
 pymatgen==2023.12.18
 pydantic==2.4.2
 pydantic-settings==2.1.0
-emmet-core==0.70.6
+emmet-core==0.81.1
 monty==2023.11.3
 pytest-cov
 piro[m3gnet]