opensc: Use libassuan2

pkgs/tools/security/opensc/default.nix

···
 { stdenv, fetchFromGitHub, autoreconfHook, pkgconfig, zlib, readline, openssl
-, libiconv, pcsclite, libassuan1, libXt
+, libiconv, pcsclite, libassuan, libXt
 , docbook_xsl, libxslt, docbook_xml_dtd_412
 }:
 
···
   '';
 
   buildInputs = [
-    autoreconfHook pkgconfig zlib readline openssl pcsclite libassuan1
+    autoreconfHook pkgconfig zlib readline openssl pcsclite libassuan
     libXt libxslt libiconv docbook_xml_dtd_412
   ];