Don't store Arc<VMInterrupts> in instances

Similar to other data structures owned by the `Store` there's no need
for `Instance` to have a strong `Arc` reference, instead it's sufficient
for `Store` to have the owning reference.

crates/jit/src/instantiate.rs

@@ -250,7 +250,7 @@ impl CompiledModule {
         imports: Imports<'_>,
         signature_registry: &mut SignatureRegistry,
         mem_creator: Option<&dyn RuntimeMemoryCreator>,
-        interrupts: Arc<VMInterrupts>,
+        interrupts: *const VMInterrupts,
         host_state: Box<dyn Any>,
         externref_activations_table: *mut VMExternRefActivationsTable,
         stack_map_registry: *mut StackMapRegistry,