Update headers from nodejs/node tag v20.7.0 (#32)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
diff --git a/include/node_api.h b/include/node_api.h
index 0345468..27acc6a 100644
--- a/include/node_api.h
+++ b/include/node_api.h
@@ -30,7 +30,7 @@
 
 typedef napi_value(NAPI_CDECL* napi_addon_register_func)(napi_env env,
                                                          napi_value exports);
-typedef int32_t(NAPI_CDECL* node_api_addon_get_api_version_func)();
+typedef int32_t(NAPI_CDECL* node_api_addon_get_api_version_func)(void);
 
 // Used by deprecated registration method napi_module_register.
 typedef struct napi_module {
@@ -66,7 +66,7 @@
 
 #define NAPI_MODULE_INIT()                                                     \
   EXTERN_C_START                                                               \
-  NAPI_MODULE_EXPORT int32_t NODE_API_MODULE_GET_API_VERSION() {               \
+  NAPI_MODULE_EXPORT int32_t NODE_API_MODULE_GET_API_VERSION(void) {           \
     return NAPI_VERSION;                                                       \
   }                                                                            \
   NAPI_MODULE_EXPORT napi_value NAPI_MODULE_INITIALIZER(napi_env env,          \