gnome-music.in: Initialize gstreamer early

GStreamer should be initialized before GstPbutils is imported.
This fixes an error message when using the gst-python bindings.

Related: pygobject#83
3 jobs for wip/mschraal/gst-import-workaround in 19 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Check
failed #8181
allowed to fail
pep8

00:00:09

failed #8180
pyflakes

00:00:10

 
  Build
skipped #8182
build
 
Name Stage Failure
failed
pep8 Check
Using Docker executor with image fedora:latest ...
Using docker image sha256:6d77b33203a08fe574848121888f116889b3343f0b5a3cf5e32b80dbc38fb190 for predefined container...
Pulling docker image fedora:latest ...
Using docker image fedora:latest ID=sha256:422dc563ca3260ad9ef5c47a1c246f5065d7f177ce51f4dd208efd82967ff182 for build container...
Running on runner-9b338874-project-293-concurrent-0 via jenkins.gnome.org...
Fetching changes...
HEAD is now at 9eeca5b CI: Remove player.py from PEP8 exceptions
fatal: unable to access 'https://gitlab-ci-token:xxxxxxxxxxxxxxxxxxxx@gitlab.gnome.org/GNOME/gnome-music.git/': Could not resolve host: gitlab.gnome.org
ERROR: Job failed: exit code 1
failed
pyflakes Check
Using Docker executor with image fedora:latest ...
Using docker image sha256:6d77b33203a08fe574848121888f116889b3343f0b5a3cf5e32b80dbc38fb190 for predefined container...
Pulling docker image fedora:latest ...
Using docker image fedora:latest ID=sha256:422dc563ca3260ad9ef5c47a1c246f5065d7f177ce51f4dd208efd82967ff182 for build container...
Running on runner-9b338874-project-293-concurrent-0 via jenkins.gnome.org...
Fetching changes...
HEAD is now at 9eeca5b CI: Remove player.py from PEP8 exceptions
fatal: unable to access 'https://gitlab-ci-token:xxxxxxxxxxxxxxxxxxxx@gitlab.gnome.org/GNOME/gnome-music.git/': Could not resolve host: gitlab.gnome.org
ERROR: Job failed: exit code 1