crypto: bump min libgcrypt to 1.9.4

Per repology, current shipping versions are:

                 RHEL-9: 1.10.0
              Debian 13: 1.11.0
       openSUSE Leap 15: 1.10.3
       Ubuntu LTS 22.04: 1.9.4
                FreeBSD: 1.11.2
              Fedora 42: 1.11.1
                OpenBSD: 1.11.2
         macOS HomeBrew: 1.11.2

Ubuntu 22.04 is our oldest constraint at this time.

Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
1 file changed