meson: enable tests for orc code

8 jobs for meson-orc-tests in 27 minutes and 45 seconds (queued for 1 second)
Status Job ID Name Coverage
  Preparation
passed #82101
gst indent

00:00:46

passed #82100
manifest

00:00:38

 
  Build
passed #82102
build fedora x86_64

00:09:00

 
  Test
passed #82103
check fedora

00:04:23

 
  Full Builds
passed #82104
build android arm64 api28

00:07:07

passed #82106
build cerbero cross win32

00:09:23

passed #82107
build cerbero cross win64

00:07:18

passed #82105
build cerbero fedora x86_64

00:12:56