`memhash` is to be deleted in 1.13

[adienes]

BytePairEncoding.jl/src/mstring.jl

Line 97 in a4ea37c

function Base.hash(m::Merge, h::UInt)

seems that memhash is used for hash(::Merge), but this will be deleted in 1.13

note that there are some in-progress plans to simplify the migration path but I just wanted to give advance warning