nextcloud-security-scan: If nextcloud-version recognizes that an update was done, the cache of nextcloud-security-scan has to be deleted
Otherwise you get on 2020-09-24:
- nextcloud-version: Nextcloud v19.0.3.1 is up to date
- nextcloud-security-scan: "A" rating for xyz, checked at 2020-09-09, on Nextcloud v19.0.2.2 (NOT on latest patch level).