Update packages/functions_client/lib/src/types.dart

Co-authored-by: Bruno D'Luka <45696119+bdlukaa@users.noreply.github.com>

Author: dshukertjr

packages/functions_client/lib/src/types.dart

@@ -32,7 +32,7 @@ class FunctionException {
   final dynamic details;
   final String? reasonPhrase;
 
-  FunctionException({required this.status, this.details, this.reasonPhrase});
+  const FunctionException({required this.status, this.details, this.reasonPhrase});
 
   @override
   String toString() =>