Recommended update for akonadi-server

This update for akonadi-server fixes the following issues:

- Add patch to work around QTBUG-72649 (very high resource consumption) (boo#1173759, boo#1182982):

This update was imported from the openSUSE:Leap:15.2:Update update project.

Fixed bugs
bnc#1182982
akonadi_imap_resource consumes 100% CPU
bnc#1173759
Kmail 20.04 as found in Leap 15.2 is unbearably slow
Selected Binaries
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