Log Message:
misc/py-anita: update to 2.12.

Changes from 2.11:

Fix incorrect scratch disk device name for riscv-riscv64 causing the
export of test result data to the host to fail.

Support the new manhtml, base32, and debug32 sets.

When installing a NetBSD version that has the new "manhtml" set, don't
mistake it for the "man" set.