[OSGeo] #3051: Upgrade weblate to 5.3

[OSGeo]

#3051: Upgrade weblate to 5.3
----------------------+--------------------------------------
 Reporter:  robe      |      Owner:  sac@…
     Type:  task      |     Status:  new
 Priority:  normal    |  Milestone:  Sysadmin Contract 2023-I
Component:  SysAdmin  |   Keywords:
----------------------+--------------------------------------
 Weblate is currently at 5.0

 I plan to upgrade it to 5.3 - which just came out yesterday
-- 
Ticket URL: <https://trac.osgeo.org/osgeo/ticket/3051>
OSGeo <https://osgeo.org/>
OSGeo committee and general foundation issue tracker.