Silence Getopt::Long warning

--- bin/json_pp.orig	2025-08-20 12:20:56 UTC
+++ bin/json_pp
@@ -2,7 +2,7 @@ use strict;
 
 BEGIN { pop @INC if $INC[-1] eq '.' }
 use strict;
-use Getopt::Long;
+use Getopt::Long qw( :config no_ignore_case );
 use Encode ();
 
 use JSON::PP ();