separate gpmf caps and cleanup

8 jobs from mp4mux-add-gpmf-track in 16 minutes and 51 seconds (queued for 2 seconds)
latest
Status Job ID Name Coverage
  Preparation
passed #90155
gst indent

00:00:15

passed #90154
manifest

00:00:17

 
  Build
passed #90156
build fedora x86_64

00:03:25

 
  Test
passed #90157
check fedora

00:03:24

 
  Full Builds
passed #90158
build android arm64 api28

00:05:27

passed #90160
build cerbero cross win32

00:09:44

passed #90161
build cerbero cross win64

00:08:50

passed #90159
build cerbero fedora x86_64

00:09:04