player: Don't crash if playbin is not available but kill the process cleanly

5 jobs for player-without-playbin in 57 minutes and 17 seconds (queued for 4 minutes and 25 seconds)
Status Job ID Name Coverage
  Preparation
passed #59892
gst indent

00:00:30

passed #59891
manifest

00:00:22

 
  Build
passed #59893
build fedora x86_64

00:03:12

 
  Full Builds
passed #59894
build android arm64 api28

00:02:22

passed #59895
build cerbero fedora x86_64

00:50:49