fix: Add missing import

crates/c_api/src/global.rs

@@ -1,6 +1,6 @@
 use crate::{wasm_extern_t, wasm_globaltype_t, wasm_store_t, wasm_val_t};
 use alloc::boxed::Box;
-use core::hint;
+use core::{hint, mem::MaybeUninit};
 use wasmi::{Extern, Global};
 
 /// A Wasm global variable.