[minor dist] Update `request` to `request@2.1`
[minor dist] Update `request` to `request@2.1`

andradedev/director,tanzhihang/director,kiritoe/director,sheldonzf/director,fadeit/director,ks3dev/director,ks3dev/director,mylikes/director,meleslilijing/director,GerHobbelt/director,maxogden/director,vitalsource/director,mylikes/director,lzhengms/director,andradedev/director,cpg1111/director,tanzhihang/director,stonegithubs/director,cpg1111/director,noxryan/director,webx32/director,meleslilijing/director,GerHobbelt/director,stonegithubs/director,pocketjoso/director,webx32/director,fadeit/director,lzhengms/director,pocketjoso/director,sheldonzf/director,pandoraui/director,flatiron/director,kiritoe/director,vitalsource/director,pandoraui/director