build(deps): bump pymongo from 4.9.0 to 4.16.0

Bumps [pymongo](https://github.com/mongodb/mongo-python-driver) from 4.9.0 to 4.16.0.
- [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@4.9...4.16.0)

---
updated-dependencies:
- dependency-name: pymongo
  dependency-version: 4.16.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

pyproject.toml

@@ -23,7 +23,7 @@ dependencies = [
   "fastapi-users[beanie, oauth] == 15.0.5",
   "MarkupSafe == 2.0.1",
   "motor == 3.6.0",
-  "pymongo == 4.9.0",
+  "pymongo == 4.16.0",
   "passlib == 1.7.4",
   "pydantic == 2.9.2",
   "pymongo-migrate == 0.11.0",