libdialog: Bump shared library version to 10.

The upgrade to libdialog 1.3 included changes to the ABI.

Bump libdpv to 3 since it links against libdialog.

Reported by: Mark Millard <marklmi@yahoo.com>
Reviewed by: bapt
Fixes: a96ef4501919 dialog: import dialog 1.3-20210117
Differential Revision: https://reviews.freebsd.org/D32675