refactor: Change meta schema

[manulpatel]

Related Issues

• fixes REST API file-upload schema for meta #3790

Proposed Changes:

Changed the schema of "meta" field in REST API, fileupload endpoint to dict.

How did you test it?

Notes for the reviewer

Checklist

• I have read the contributors guidelines and the code of conduct
• I have updated the related issue with new insights and changes
• I added tests that demonstrate the correct behavior of the change
• I've used one of the conventional commit types for my PR title: fix:, feat:, build:, chore:, ci:, docs:, style:, refactor:, perf:, test:.
• I documented my code
• I ran pre-commit hooks and fixed any issue

[TuanaCelik]

@manulpatel @mayankjobanputra left a comment for you on Discord so I'm adding it here for records:

Thanks for the PR. I allowed the tests to run and I see a few failures. Whenever you get time, please have a look at the failures by clicking on "Details".

The failure of Linting/pylint, you should be able to fix by running the pre-commit steps described in Contributing.md
Please feel free to discuss your questions here or directly on the PR. I will be monitoring both 🙂