Upgrade deps and bump to Nextcloud 20

Also rebuild because of https://github.com/nextcloud/server/issues/20674

Signed-off-by: Thomas Citharel <tcit@tcit.fr>
2 jobs for version-0.3 in 1 minute and 50 seconds (queued for 2 seconds)
Status Name Job ID Coverage
  Lint
passed eslint #1087340

00:01:50

passed phplint #1087339

00:01:49