About the use of the unknown type

[Alfred-Skyblue]

I have noticed that in the source code of Vue, many function parameters are typed as "unknown", but there are no type guards used internally, and instead they are directly asserted as another type. I am wondering if it would be possible to modify these parameters to use the "any" type instead, so that we don't need to perform type assertions. I am willing to submit a PR for this change, even though it won't affect the business logic, as it will modify a significant amount of code. Therefore, I would like to consult with others first to see if this approach is reasonable and necessary. Thank you.