Update deprecation message
Update deprecation message

--HG--
branch : feature/asset-api-refactor

nizihabi/engine,horryq/engine-1,playcanvas/engine,guycalledfrank/engine,shinate/engine,3DGEOM/engine,shinate/engine,sanyaade-teachings/engine,RainsSoft/engine,maxwellalive/engine,sereepap2029/playcanvas,SuperStarPL/engine,aidinabedi/playcanvas-engine,H1Gdev/engine,aidinabedi/playcanvas-engine,nizihabi/engine,RainsSoft/engine,maxwellalive/engine,3DGEOM/engine,MicroWorldwide/PlayCanvas,SuperStarPL/engine,3DGEOM/engine,horryq/engine-1,horryq/engine-1,SuperStarPL/engine,H1Gdev/engine,maxwellalive/engine,shinate/engine,sereepap2029/playcanvas,sereepap2029/playcanvas,sanyaade-teachings/engine,RainsSoft/engine,playcanvas/engine,guycalledfrank/engine,sanyaade-teachings/engine,nizihabi/engine,MicroWorldwide/PlayCanvas