Adapt to libkleo's new kleoexception.h include file

In order to avoid clash with the standard <exception> header
on case-insensitive systems, libkleo's Exception header has been
renamed to KleoException.
1 job for !2 with work/kleo-exception in 7 minutes and 57 seconds (queued for 1105 minutes and 49 seconds)
detached
Status Job ID Name Coverage
  Build
passed #76277
linux kf5-qt5 qt5.12

00:07:57

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