Moves the "golden query" results from being inline in the code to being
in separate files, and introduces a workflow to overwrite the files,
namely:

OVERWRITE_GOLDEN=true just ci

This makes it easier to maintain these golden tests when things change.

We use `ruff format` to format all python files, so cases where we
exceed the configured max line length are rare, and usually to do with
formatting/outputting strings. The nag of E501 is a waste of time.

* chore: split deps into separate extras

* chore: update docs and dockerfile

* chore: only install vectorizer-worker extra in dockerfile

…ed (#838)

* docs: remove docs for structured retrieval as it is no longer supported

* docs: remove link to missing text-to-sql docs