chore: bump version to 0.2.1, restrict database host, and increase max file upload size to 100MB

[ronibhakta1]

This pull request includes a version bump and increases the file upload size limits across the API and Nginx, as well as tightening the Postgres service binding to localhost for improved security.

Version and configuration updates:

• Bumped the project version from 0.2.0 to 0.2.1 in VERSION.

Security improvements:

• Updated the Postgres service in compose.yaml to bind to 127.0.0.1 instead of all interfaces, restricting access to localhost.

File upload and request handling enhancements:

• Increased client_max_body_size in docker/nginx/nginx.conf from 50M to 100M, allowing larger uploads via Nginx.
• Increased MAX_FILE_SIZE in lenny/core/api.py from 50MB to 100MB, permitting larger files to be processed by the API.

Note

After Update make sure you update top Ngnix layer to support new changes on your Local machines or Cloud instance's or you might get blocked.