games/veloren: Unbreak with Rust 1.56.0
error[E0557]: feature has been removed
--> /wrkdirs/usr/ports/games/veloren/work/veloren-e4716147a7356eb13088e7d74ace3ccdcb5cd900/cargo-crates/packed_simd_2-0.3.5/src/lib.rs:215:5 |
215 | const_generics,
| ^^^^^^^^^^^^^^ feature has been removed | = note: removed in favor of `#![feature(adt_const_params]` and `#![feature(generic_const_exprs)]`
PR: 259251