ci: add aarch64 QEMU tests, fix wasm32 unused import

Author: lilith

.github/workflows/ci.yml

@@ -222,6 +222,7 @@ jobs:
       matrix:
         target:
           - i686-unknown-linux-gnu
+          - aarch64-unknown-linux-gnu
           - armv7-unknown-linux-gnueabihf
 
     steps:

src/simd/mod.rs

@@ -35,6 +35,8 @@ pub mod x86_64;
 pub mod aarch64;
 
 use crate::consts::DCTSIZE2;
+
+#[cfg(any(target_arch = "x86_64", target_arch = "aarch64"))]
 use archmage::SimdToken;
 
 #[cfg(target_arch = "x86_64")]