Bump pydantic from 1.8.1 to 1.8.2 in /emmet-core

Bumps [pydantic](https://github.com/samuelcolvin/pydantic) from 1.8.1 to 1.8.2.
- [Release notes](https://github.com/samuelcolvin/pydantic/releases)
- [Changelog](https://github.com/samuelcolvin/pydantic/blob/master/HISTORY.md)
- [Commits](pydantic/pydantic@v1.8.1...v1.8.2)

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

emmet-core/requirements.txt

@@ -1,6 +1,6 @@
 pymatgen==2022.0.5
 monty==v2021.3.3
-pydantic==1.8.1
+pydantic==1.8.2
 pybtex==0.24.0
 typing-extensions==3.10.0.0
 pymongo==3.11.4