[Announce] delaying 2.13 final by a few days

[Junio C Hamano <gitster@xxxxxxxxx>]

As -rc2 was delayed for a few days, I'd like to delay the release of
the final 2.13 (which was originally scheduled on 8th) by a few days.
For one thing that would give translaors a bit more time to update
the message strings.

Thanks.