tests: aacparse: use caps query instead of accept-caps
tests: aacparse: use caps query instead of accept-caps

The accept-caps query just does a shallow check at the current
element while at this test we want it to also look at downstream.
So use caps query there.

https://bugzilla.gnome.org/show_bug.cgi?id=753623

pexip/gst-plugins-good,sebras/gst-plugins-good,sebras/gst-plugins-good,stfl/gst-plugins-good,StreamUtils/gst-plugins-good,GStreamer/gst-plugins-good,GrokImageCompression/gst-plugins-good,Kurento/gst-plugins-good,Kurento/gst-plugins-good,Kurento/gst-plugins-good,StreamUtils/gst-plugins-good,stfl/gst-plugins-good,Kurento/gst-plugins-good,GrokImageCompression/gst-plugins-good,rawoul/gst-plugins-good,Kurento/gst-plugins-good,hizukiayaka/gst-plugins-good,GStreamer/gst-plugins-good,GStreamer/gst-plugins-good,hizukiayaka/gst-plugins-good,GStreamer/gst-plugins-good,GrokImageCompression/gst-plugins-good,StreamUtils/gst-plugins-good,pexip/gst-plugins-good,hizukiayaka/gst-plugins-good,stfl/gst-plugins-good,hizukiayaka/gst-plugins-good,rawoul/gst-plugins-good,GrokImageCompression/gst-plugins-good,StreamUtils/gst-plugins-good,sebras/gst-plugins-good,pexip/gst-plugins-good,rawoul/gst-plugins-good,pexip/gst-plugins-good,rawoul/gst-plugins-good,sebras/gst-plugins-good,stfl/gst-plugins-good,pexip/gst-plugins-good