evmap doesn't build since rust 1.90.0 release

[dare-to-recurse]

Hi

I noticed by chance that this lib no longer builds, and I've triaged it to this PR: rust-lang/rust#138340 which got merged into rust 1.90.0.

The compile error is as follows (multiple instances omitted for brevity):

error[E0277]: the size for values of type `A` cannot be known at compilation time
   --> src/stable_hash_eq.rs:122:17
    |
122 |     {A: ?Sized} (A,),
    |      -          ^^^^ doesn't have a size known at compile-time
    |      |
    |      this type parameter needs to be `Sized`
    |
    = note: required for `(A,)` to implement `Eq`
note: required by a bound in `StableHashEq`
   --> src/stable_hash_eq.rs:11:32
    |
 11 | pub trait StableHashEq: Hash + Eq + sealed_hash_eq::Sealed {}
    |                                ^^ required by this bound in `StableHashEq`
help: consider removing the `?Sized` bound to make the type parameter `Sized`
    |
 39 -             impl$(<$($a,)*$($T$(:?$Sized)?,)*>)? StableHashEq for $Type
 39 +             impl$(<$($a,)*$($T$()?,)*>)? StableHashEq for $Type
    |

[jonhoo]

Fix published in v11.0.0-alpha.8 🎉