Bump version to 0.4.2
Bump version to 0.4.2

TiteiKo/fakeredis,hoffmanc/fakeredis,caulfield/fakeredis,zegal-cn/fakeredis,alexlag/fakeredis,carsonreinke/fakeredis,alienxp03/fakeredis,guilleiguaran/fakeredis,gotwalt/fakeredis,meetupcall/fakeredis