glmark2: Switch pulsar to apitrace.

This was done with vblank_mode=3 (to capture fewer frames per unit
time) and taking frame 30 using gltrim.  Bigger than the .rdc, but
should be much faster to run.

Part-of: <!33>
3 jobs for master in 3 minutes and 42 seconds (queued for 2 minutes and 44 seconds)
Status Name Job ID Coverage
  Container
passed alpine-image #10257115

00:00:28

 
  Test
passed check-file-uniqueness #10257116
packet.net

00:00:55

 
  Deploy
passed upload-to-minio #10257117
packet.net

00:02:17