[OSGeo] #2868: Upgrade wiki.osgeo.org to MediaWiki 1.39.1

[OSGeo]

#2868: Upgrade wiki.osgeo.org to MediaWiki 1.39.1
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 Reporter:  robe      |       Owner:  sac@…
     Type:  task      |      Status:  new
 Priority:  normal    |   Milestone:  Sysadmin Contract 2024-I
Component:  SysAdmin  |  Resolution:
 Keywords:            |
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Comment (by robe):

 FWIW I did figure out the issue with LDAP so grass-wiki is running a newer
 version 1.41.0
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Ticket URL: <https://trac.osgeo.org/osgeo/ticket/2868#comment:4>
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