- We previously pushed logs into archives categorised by the quarter that they were created for.
- CDS requested that instead we push everything into a larger bucket seperated by FY.
This renames the case_log to lettings_log as everything we've written so
far has been geared towards lettings of social housing so it makes sense to
have the name describe this. This is also a precursor to adding in stuff for
sales logs (whatever shape that takes)
Co-authored-by: James Rose <james@jbpr.net>