build(deps): bump pydantic in /experiment-tracker/data-collector

Bumps [pydantic](https://github.com/pydantic/pydantic) from 2.3.0 to 2.5.2.
- [Release notes](https://github.com/pydantic/pydantic/releases)
- [Changelog](https://github.com/pydantic/pydantic/blob/v2.5.2/HISTORY.md)
- [Commits](pydantic/pydantic@v2.3.0...v2.5.2)

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

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

experiment-tracker/data-collector/requirements.txt

@@ -1,5 +1,5 @@
 fastapi==0.103.1
-pydantic==2.3.0
+pydantic==2.5.2
 pydantic-settings==2.0.3
 couchdb==1.2
 uvicorn==0.23.2