vcpkg-ports/pkcs11-helper: bump to release 1.28

vcpkg-ports/pkcs11-helper: bump to release 1.28

This release has merged openssl 1.1.1 support patch,
so our own patch could be removed from the port.

Remove unconditional /release flag, which is added by vcpkg
for release builds. Having this flag unconditionally breaks vcpkg
debug builds.

Signed-off-by: Lev Stipakov <lev@openvpn.net>
Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <20220111150605.208-1-lstipakov@gmail.com>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg23526.html
Signed-off-by: Gert Doering <gert@greenie.muc.de>