Mongoose 6.7.2发布

fix(discriminator): skip copying base schema plugins if applyPlugins == false #12613 #12604 lpizzinidev
fix(types): add UUID to types #12650 #12593
fix(types): allow setting SchemaTypeOptions’ index property to IndexOptions #12562
fix(types): set this to doc type in SchemaType.prototype.validate() #12663 #12590
fix(types): correct handling for model #12659 #12573
fix(types): pre hook with deleteOne should resolve this as Query #12642 #12622 lpizzinidev