fix: Combine san_francisco_bikeshare_* folders into san_francisco_bikeshare

[adlersantos]

Description

This PR prevents creating new datasets called san_francisco_bikeshare_stations and san_francisco_bikeshare_status that don't exist on prod.

The proper dataset name for the SF bikeshare dataset is san_francisco_bikeshare, with two pipelines (BQ tables) under it:

datasets
    /san_francisco_bikeshare
        /bikeshare_station_info/*
        /bikeshare_station_status/*

Checklist

• Please merge this PR for me once it is approved.
• If this PR adds or edits a dataset or pipeline, it was reviewed and approved by the Google Cloud Public Datasets team beforehand.
• If this PR adds or edits a dataset or pipeline, I put all my code inside datasets/san_francisco_311_* and nothing outside of those directories.
• This PR is appropriately labeled.