Update AUTHORS [ci skip]

AUTHORS

@@ -812,6 +812,9 @@ Developers:
         
     Mazyod
         Fixed a bug that HTTPClient reports 2xx status codes as errors
+        
+    iSevenDays
+        Fixed a bug that the result of 'malloc' is incompatible with type 'unsigned char *' in Image::saveImageToPNG
     
 Retired Core Developers:
     WenSheng Yang