Move matplotlib to test failures since it's not a bound issue
Move matplotlib to test failures since it's not a bound issue

creichert/stackage,jonschoning/stackage,mstksg/stackage,soenkehahn/stackage,wereHamster/stackage,fimad/stackage,lwm/stackage,iand675/stackage,alanz/stackage,mrkkrp/stackage,int-index/stackage,spencerjanssen/stackage,Daniel-Diaz/stackage,simonmichael/stackage,k0ral/stackage,massysett/stackage,michalkonecny/stackage,Shimuuar/stackage,asr/stackage,phaazon/stackage,mgajda/stackage,ygale/stackage,peti/stackage,clinty/stackage,garetxe/stackage,ethercrow/stackage,athanclark/stackage,judah/stackage,GregorySchwartz/stackage,stackbuilders/stackage,fpco/stackage