Fix operator== type in TextDecoration class

@@ -7,6 +7,7 @@
 - Update barcode golden pdf
 - Add support for hyphenation [ilja]
 - Add an option to disable bidirectional support [Olzhas-Suleimen]
+- Fix operator== type in TextDecoration class
 
 ## 3.10.7
 

@@ -68,7 +68,7 @@ class TextDecoration {
   }
 
   @override
-  bool operator ==(dynamic other) {
+  bool operator ==(Object other) {
     if (other is! TextDecoration) {
       return false;
     }