chore(package): uvify

[aekasitt]

This PR does exactly four things which will be broken down to separate PRs for review working with current package managers.

• Change package manager from Poetry to Uv
• Include uv.lock file as part of version control to prevent later builds breaking as seen by PydanticV1 -> PydanticV2 breaking changes
• Locks Pydantic version to below 2; Otherwise the following code will break

from pydantic import BaseSettings

because the above BaseSettings class has been modularized into separate library called pydantic_settings

• Apply patch for secp256k1 according to the following fix on nsite
  Subprocess exited with error on pip install -r requirements.txt lez/nsite#1