TST: increase minimum asv Cython version to 0.23.4.
TST: increase minimum asv Cython version to 0.23.4.

apbard/scipy,jamestwebber/scipy,jjhelmus/scipy,kalvdans/scipy,scipy/scipy,pschella/scipy,pizzathief/scipy,WarrenWeckesser/scipy,jor-/scipy,WarrenWeckesser/scipy,vigna/scipy,befelix/scipy,gertingold/scipy,e-q/scipy,e-q/scipy,jjhelmus/scipy,person142/scipy,person142/scipy,perimosocordiae/scipy,WarrenWeckesser/scipy,arokem/scipy,zerothi/scipy,pizzathief/scipy,apbard/scipy,jamestwebber/scipy,nmayorov/scipy,mdhaber/scipy,apbard/scipy,scipy/scipy,jor-/scipy,gertingold/scipy,jakevdp/scipy,mdhaber/scipy,person142/scipy,ilayn/scipy,arokem/scipy,aeklant/scipy,tylerjereddy/scipy,josephcslater/scipy,dominicelse/scipy,person142/scipy,aeklant/scipy,jakevdp/scipy,scipy/scipy,pschella/scipy,e-q/scipy,andyfaff/scipy,pbrod/scipy,pschella/scipy,lhilt/scipy,zerothi/scipy,gfyoung/scipy,ilayn/scipy,gertingold/scipy,scipy/scipy,jor-/scipy,aeklant/scipy,Stefan-Endres/scipy,rgommers/scipy,arokem/scipy,josephcslater/scipy,vigna/scipy,mdhaber/scipy,vigna/scipy,perimosocordiae/scipy,ilayn/scipy,jjhelmus/scipy,aeklant/scipy,aarchiba/scipy,pizzathief/scipy,Stefan-Endres/scipy,pizzathief/scipy,gfyoung/scipy,zerothi/scipy,jakevdp/scipy,zerothi/scipy,kalvdans/scipy,perimosocordiae/scipy,grlee77/scipy,zerothi/scipy,lhilt/scipy,lhilt/scipy,endolith/scipy,josephcslater/scipy,tylerjereddy/scipy,WarrenWeckesser/scipy,befelix/scipy,matthew-brett/scipy,anntzer/scipy,jor-/scipy,anntzer/scipy,lhilt/scipy,ilayn/scipy,gertingold/scipy,nmayorov/scipy,andyfaff/scipy,pschella/scipy,aarchiba/scipy,tylerjereddy/scipy,mdhaber/scipy,endolith/scipy,scipy/scipy,lhilt/scipy,gfyoung/scipy,e-q/scipy,vigna/scipy,gfyoung/scipy,ilayn/scipy,arokem/scipy,Stefan-Endres/scipy,jamestwebber/scipy,dominicelse/scipy,perimosocordiae/scipy,nmayorov/scipy,perimosocordiae/scipy,befelix/scipy,tylerjereddy/scipy,matthew-brett/scipy,josephcslater/scipy,kalvdans/scipy,anntzer/scipy,aarchiba/scipy,grlee77/scipy,jamestwebber/scipy,WarrenWeckesser/scipy,endolith/scipy,apbard/scipy,andyfaff/scipy,pbrod/scipy,vigna/scipy,matthew-brett/scipy,Eric89GXL/scipy,zerothi/scipy,jjhelmus/scipy,nmayorov/scipy,pbrod/scipy,grlee77/scipy,pbrod/scipy,pschella/scipy,gfyoung/scipy,andyfaff/scipy,kalvdans/scipy,kalvdans/scipy,dominicelse/scipy,mdhaber/scipy,matthew-brett/scipy,pizzathief/scipy,rgommers/scipy,Eric89GXL/scipy,grlee77/scipy,andyfaff/scipy,Stefan-Endres/scipy,anntzer/scipy,scipy/scipy,befelix/scipy,befelix/scipy,jjhelmus/scipy,perimosocordiae/scipy,dominicelse/scipy,matthew-brett/scipy,endolith/scipy,endolith/scipy,jakevdp/scipy,WarrenWeckesser/scipy,grlee77/scipy,josephcslater/scipy,jakevdp/scipy,aarchiba/scipy,Eric89GXL/scipy,apbard/scipy,tylerjereddy/scipy,rgommers/scipy,Eric89GXL/scipy,e-q/scipy,pbrod/scipy,jamestwebber/scipy,rgommers/scipy,aarchiba/scipy,Eric89GXL/scipy,dominicelse/scipy,rgommers/scipy,Eric89GXL/scipy,nmayorov/scipy,Stefan-Endres/scipy,Stefan-Endres/scipy,gertingold/scipy,aeklant/scipy,arokem/scipy,andyfaff/scipy,anntzer/scipy,person142/scipy,anntzer/scipy,jor-/scipy,endolith/scipy,pbrod/scipy,ilayn/scipy,mdhaber/scipy