fix(data-types/blob): only return null for mysql binary null (#9441)
fix(data-types/blob): only return null for mysql binary null (#9441)


inDream/sequelize,Americas/sequelize,jayprakash1/sequelize,mikeringrose/sequelize,inDream/sequelize,sequelize/sequelize,overlookmotel/sequelize,Alexsey/sequelize,sequelize/sequelize,yjwong/sequelize,jayprakash1/sequelize,Americas/sequelize,overlookmotel/sequelize,sequelize/sequelize