Describe the bug
cast_to_variant will panic for values of Date64 / Timestamp that can not be converted to NaiveDate

For example:

And

To Reproduce

Pass in some value that is not representable as a NaiveDate (needs research to figure out what that could be)

It will panic

Expected behavior

I think we should have some way to specify what to do if the conversion fails, similar to the cast kernel which has a strict mode

if strict is true, then if the conversion fails an error is returned
If struct is false, then if the conversion fails, a Null is output

Additional context