Initial work to build for Windows ARM64 (#4990)

* Make wasmtime build for windows-aarch64

* Add check for win arm64 build.

* Fix checks for winarm64 key in workflows.

* Add target in windows arm64 build.

* Add tracking issue for Windows ARM64 trap handling

crates/jit/src/unwind/winx64.rs

@@ -21,7 +21,7 @@ impl UnwindRegistration {
         if RtlAddFunctionTable(
             unwind_info as *mut _,
             (unwind_len / unit_len) as u32,
-            base_address as u64,
+            base_address as _,
         ) == 0
         {
             bail!("failed to register function table");