devel/sem: Update to 0.11.1

Sem now ships with opt-out telemetry that sends which sem subcommand and
which flags are used. It does not send filename or file contents.

For FreeBSD, I'm changing it to opt-in. While I appreciate that telemetry
contains minimal end-user data, a notice about telemetry is shown only
once and never again. Data are sent to a private, opaque fly.io container.
I find all of the above insufficient.

Discussed with: portmgr (mat)