Adjust node engine requirements until node-canvas supports v4.0.0.
Adjust node engine requirements until node-canvas supports v4.0.0.

lehni/paper.js,EskenderDev/paper.js,nancymark/paper.js,mcanthony/paper.js,iconexperience/paper.js,ClaireRutkoske/paper.js,byte-foundry/paper.js,iconexperience/paper.js,ClaireRutkoske/paper.js,iconexperience/paper.js,byte-foundry/paper.js,EskenderDev/paper.js,mcanthony/paper.js,nancymark/paper.js,lehni/paper.js,byte-foundry/paper.js,nancymark/paper.js,ClaireRutkoske/paper.js,mcanthony/paper.js,lehni/paper.js,EskenderDev/paper.js