[SAC] [OSGeo] #2889: Upgrade nextcloud to 25.0.3 and PG 15

[OSGeo]

#2889: Upgrade nextcloud to 25.0.3 and PG 15
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 Reporter:  robe           |      Owner:  sac@…
     Type:  task           |     Status:  new
 Priority:  normal         |  Milestone:  Sysadmin Contract 2023-I
Component:  Systems Admin  |   Keywords:
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 Nextcloud is currently at 25.0.2.

 The PostgreSQL is at 12.

 Planning to upgrade it to at least 14 as part of the next patch update.
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Ticket URL: <https://trac.osgeo.org/osgeo/ticket/2889>
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