Test Azure work with Azurite

[palfrey]

As discussed at #2472 (comment). @amankrx said "We can run Azurite in CI as a service container, same pattern as the existing mongo_runner. We can point the store at it via endpoint and a SAS URL", and that's what this issue covers.

[Muktarsadiq]

Hi! I'd like to work on this, if it's still open

[palfrey]

AFAIK no one is currently working on this, would be happy to see PRs for it