Modernize setup

[fnesveda]

There are no functional changes in this PR. It only modernizes the repository setup:

• migrates from npm to pnpm
• migrates from eslint to oxlint
• migrates from jest to vitest
• adds formatting with oxfmt
• updates to Typescript v7
• stops compiling the code (and commiting it), instead will just run TypeScript files directly in the action
• adds automated releases with release-please
• adds linting and testing in CI
• moves tests to a separate directory
• replaces axios with fetch

Some of the changes were much easier to do all at once (linting, testing, TS update, file structure change) and it would be a pain in the ass to separate them in multiple PRs, therefore I've done them all at once (which makes the PR basically unreviewable).

Since there are no functional changes, and the PR works (because a workflow in it tries to run the action on top of the PR), I'll just merge it, sorry.

[Mantisus]

@fnesveda sorry, but after this PR the Apify pull request toolkit always fails for PRs from forks 🙂

https://github.com/apify/crawlee-python/actions/runs/32528650738/job/96916026658?pr=2158

[fnesveda]

@Mantisus Ah, sorry, my bad. I've fixed it now: #59

And I re-ran the failed workflow on your PR and it went through now.