Release 2853

Trello card

Trello-683

Context

This was recently added to the school data we import on a nightly basis. I've manually added it to the dev/staging/production environments; this updates the seed data to be consistent.

Changes proposed in this pull request

• Add Online Provider school type

Guidance to review

Manually added with:

Bookings::SchoolType.create!(name: "Online provider", edubase_id: 49)