build: Fix native build for missing symbol

```
$s13JavaScriptKit8JSObjectC2idACs6UInt32V_tcfc: error: undefined reference to 'swjs_get_worker_thread_id_cached'
```

Author: kateinoigakukun

Sources/_CJavaScriptKit/_CJavaScriptKit.c

@@ -1,18 +1,18 @@
 #include "_CJavaScriptKit.h"
 #if __wasm32__
-#ifndef __wasi__
-#if __has_include("malloc.h")
-#include <malloc.h>
-#endif
+# ifndef __wasi__
+# if __has_include("malloc.h")
+#  include <malloc.h>
+# endif
 extern void *malloc(size_t size);
 extern void free(void *ptr);
 extern void *memset (void *, int, size_t);
 extern void *memcpy (void *__restrict, const void *__restrict, size_t);
-#else
-#include <stdlib.h>
-#include <stdbool.h>
+# else
+#  include <stdlib.h>
+#  include <stdbool.h>
 
-#endif
+# endif
 /// The compatibility runtime library version.
 /// Notes: If you change any interface of runtime library, please increment
 /// this and `SwiftRuntime.version` in `./Runtime/src/index.ts`.
@@ -34,7 +34,7 @@ void swjs_cleanup_host_function_call(void *argv_buffer) {
 // NOTE: This __wasi__ check is a hack for Embedded compatibility (assuming that if __wasi__ is defined, we are not building for Embedded)
 // cdecls don't work in Embedded, but @_expose(wasm) can be used with Swift >=6.0
 // the previously used `#if __Embedded` did not play well with SwiftPM (defines needed to be on every target up the chain)
-#ifdef __wasi__
+# ifdef __wasi__
 bool _call_host_function_impl(const JavaScriptHostFuncRef host_func_ref,
                               const RawJSValue *argv, const int argc,
                               const JavaScriptObjectRef callback_func);
@@ -59,6 +59,8 @@ __attribute__((export_name("swjs_library_features")))
 int swjs_library_features(void) {
     return _library_features();
 }
+# endif
+#endif
 
 int swjs_get_worker_thread_id_cached(void) {
     _Thread_local static int tid = 0;
@@ -67,5 +69,3 @@ int swjs_get_worker_thread_id_cached(void) {
     }
     return tid;
 }
-#endif
-#endif