MLEHMANN ignores Perl newer than 5.22, disable feature signatures

Index: XS.pm
--- XS.pm.orig
+++ XS.pm
@@ -64,6 +64,7 @@ vice versa.
 
 package CBOR::XS;
 
+no feature 'signatures';
 use common::sense;
 
 our $VERSION = 1.87;
