chore: drop poetry in favor of pip-tools

test(nlp): fix broken test

chore: update dependencies to latest

Also bundled this up with a few other changes:
- use pip-tools to compile and pin dependencies
- upgrade pydantic to v2 (required refactoring)

chore: drop poetry dependency for API

chore: drop flake8 in pre-commit hook

style: remove whitespace after running linter

chore: do not fail on help if not installed

chore(nlp): update to python 3.10

refactor(nlp): only use `/posts` for fetching

refactor(nlp): make use of argparse subparsers

chore(nlp): add CLI help to makefile

chore: update env vars docker-compose

In the start.sh for the API, we no longer use
DEBUG environment variable but rather ENV, which
is either debug, development or production.

refactor(nlp): simplify path handling and run ids

refactor(nlp): dest arg is not needed for parsing

chore(nlp): use gitignore over keep

refactor(nlp): add Command enum as source of truth

chore: simplify main make tests

test(api): do not share state and rollback db

chore(api): add asgi-lifespan to dev dependencies

This is necessary for yielding the asgi app test client.
If the test client is not wrapped in this context manager,
then the startup and shutdown events will not be triggered.

chore(ci): build and push images