tests: 5x gc.collect() isn't always enough on armel
tests: 5x gc.collect() isn't always enough on armel

jodal/pyspotify,jodal/pyspotify,kotamat/pyspotify,jodal/pyspotify,mopidy/pyspotify,felix1m/pyspotify,felix1m/pyspotify,kotamat/pyspotify,felix1m/pyspotify,mopidy/pyspotify,kotamat/pyspotify