tests: Fix GSource leak
tests: Fix GSource leak

tieto/farstream,tieto/farstream,tieto/farstream,tieto/farstream,kakaroto/farstream,kakaroto/farstream,pexip/farstream,pexip/farstream,tieto/farstream,pexip/farstream,pexip/farstream,kakaroto/farstream,kakaroto/farstream