TSG-17693 修复错误的判断，导致lua脚本执行失败

plugin/business/tsg-http/src/http_lua.cpp

@@ -834,7 +834,7 @@ size_t execute_lua_script_rule(struct tsg_lua_script *lua_script, int profile_id
 		return ret;
 	}
 
-	if(*escript == NULL)
+	if(escript[thread_id] == NULL)
 	{
 		escript[thread_id]=http_lua_map_cache_script(lua_script->http_lua_handle[thread_id], profile_msg, msg_len, timeout);
 	}