[SAC] [OSGeo] #2826: Upgrade nextcloud-ubuntu from 20.04 to 22.04

[OSGeo]

#2826: Upgrade nextcloud-ubuntu from 20.04 to 22.04
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 Reporter:  robe           |      Owner:  sac@…
     Type:  task           |     Status:  new
 Priority:  normal         |  Milestone:  Sysadmin Contract 2022-II
Component:  Systems Admin  |   Keywords:
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 Nextcloud is currently running 20.04.  Should be upgraded.

 Not super urgent as it's running PHP 7.4, which is safe enough at the
 moment.
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Ticket URL: <https://trac.osgeo.org/osgeo/ticket/2826>
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