Bug 30565: Database revision for stockrotationrotas

Bug 30565: Database revision for stockrotationrotas

Add unique key if needed.
Adjust description column to make it NOT NULL.

Test plan:
(Optionally:) Drop unique key, make description nullable.
Run dbrev.
Check if unique key present, and description not-nullable.

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>