bump to 5.0

Signed-off-by: David Heidelberg <david@ixit.cz>
2 jobs for release/5.x in 8 minutes and 34 seconds (queued for 1 second)
Status Job ID Name Coverage
  Code Analysis
passed #1136764
code_analysis

00:02:59

 
  Build
passed #1136765
flatpak
flatpak

00:05:35