Depend on GLib >= 2.60.0

Fixes #10125
3 jobs for master in 3 minutes and 8 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #17190
run-appdata

00:00:05

passed #17189
run-tests

00:02:52

 
  Build
passed #17191
run-build

00:00:11