po: update the gschema file name

3 jobs for <span class="ref-name">appdata</span> in 2 minutes and 42 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test
passed #185989
flatpak

00:01:39

 
  Deploy
passed #185990
review

00:01:03

manual #185991
allowed to fail manual
stop_review