Fix compilation error in PlatformIO due to missing file

Author: mobizt

README.md

@@ -2,11 +2,11 @@
 
 ![GitHub Actions Workflow Status](https://img.shields.io/github/actions/workflow/status/mobizt/FirebaseClient/.github%2Fworkflows%2Fcompile_library.yml?logo=github&label=compile) [![Github Stars](https://img.shields.io/github/stars/mobizt/FirebaseClient?logo=github)](https://github.com/mobizt/FirebaseClient/stargazers) ![Github Issues](https://img.shields.io/github/issues/mobizt/FirebaseClient?logo=github)
 
-![GitHub Release](https://img.shields.io/github/v/release/mobizt/FirebaseClient) ![Arduino](https://img.shields.io/badge/Arduino-v1.5.6-57C207?logo=arduino) ![PlatformIO](https://badges.registry.platformio.org/packages/mobizt/library/FirebaseClient.svg) ![GitHub Release Date](https://img.shields.io/github/release-date/mobizt/FirebaseClient)
+![GitHub Release](https://img.shields.io/github/v/release/mobizt/FirebaseClient) ![Arduino](https://img.shields.io/badge/Arduino-v1.5.7-57C207?logo=arduino) ![PlatformIO](https://badges.registry.platformio.org/packages/mobizt/library/FirebaseClient.svg) ![GitHub Release Date](https://img.shields.io/github/release-date/mobizt/FirebaseClient)
 
 [![GitHub Sponsors](https://img.shields.io/github/sponsors/mobizt?logo=github)](https://github.com/sponsors/mobizt)
 
-Revision `2025-02-09`
+Revision `2025-02-10`
 
 ## Table of Contents
 

library.json

@@ -1,6 +1,6 @@
 {
   "name": "FirebaseClient",
-  "version": "1.5.6",
+  "version": "1.5.7",
   "keywords": "communication, REST, esp32, esp8266, arduino",
   "description": "Async Firebase Client library for Arduino.",
   "repository": {

library.properties

@@ -1,6 +1,6 @@
 name=FirebaseClient
 
-version=1.5.6
+version=1.5.7
 
 author=Mobizt
 

src/core/Core.h

@@ -7,7 +7,7 @@
 #undef FIREBASE_CLIENT_VERSION
 #endif
 
-#define FIREBASE_CLIENT_VERSION "1.5.6"
+#define FIREBASE_CLIENT_VERSION "1.5.7"
 
 static void sys_idle()
 {