Bump pymongo from 4.3.2 to 4.6.3 in /mpcontribs-serverless/dependencies

Bumps [pymongo](https://github.com/mongodb/mongo-python-driver) from 4.3.2 to 4.6.3.
- [Release notes](https://github.com/mongodb/mongo-python-driver/releases)
- [Changelog](https://github.com/mongodb/mongo-python-driver/blob/master/doc/changelog.rst)
- [Commits](mongodb/mongo-python-driver@4.3.2...4.6.3)

---
updated-dependencies:
- dependency-name: pymongo
  dependency-type: indirect
...

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

mpcontribs-serverless/dependencies/requirements.txt

@@ -164,7 +164,7 @@ pymatgen==2022.10.22
     #   emmet-core
     #   mp-api
     #   mpcontribs-client
-pymongo==4.3.2
+pymongo==4.6.3
     # via mpcontribs-client
 pyparsing==3.0.9
     # via