feat: Migrate nix setup to uv, and add a github action for testing env

[FallenDeity]

Change description

Updated the nix env to use uv to install deps, also added a github action to test working inside nix env

resolves #1583

AI coding assistance disclosure

None

Contributor check list

• I have written a description of the contribution and explained its motivation.
• I have written tests for my code changes (if applicable).
• I have read and understood the AI Assisted Contribution guidelines.
• I will own this change in production, and I am prepared to fix any bugs caused by my code change.

[Naramsim]

Seems ok, I'll ping @Indyandie if he has some time to review properly.

[Indyandie]

@FallenDeity @Naramsim I'm not too familiar with uv yet. The default.nix seems correct and should work. To be certain I would need to test myself but I don't want hold things up.

🤔 Hmm... would it be a bad idea to switch over to a flake though? Here's an example https://github.com/akirak/flake-templates/blob/master/python-uv-simple/flake.nix

[Naramsim]

I checked a bit the docs and everything seems good! Thanks for the PR @FallenDeity !

[pokeapi-machine-user]

A PokeAPI/api-data refresh has started. In ~45 minutes the staging branch of PokeAPI/api-data will be pushed with the new generated data.

The staging branch will be deployed in our staging environment and the entire API will be ready to review.

A Pull Request (master<-staging) will be also created at PokeAPI/api-data and assigned to the PokeAPI Core team to be reviewed. If approved and merged new data will soon be available worldwide at pokeapi.co.

[pokeapi-machine-user]

The updater script has finished its job and has now opened a Pull Request towards PokeAPI/api-data with the updated data.

The Pull Request can be seen deployed in our staging environment when CircleCI deploy will be finished (check the start time of the last build).