unrar: upgraded package to upstream

Upgraded app-arch/unrar to version 6.0.6.

BUG=None
TEST=CQ passes

Change-Id: I4bb7d060a67ad4893b36e6598fa669e3b0f4d6a2
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/portage-stable/+/2923074
Tested-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Sergey Frolov <sfrolov@google.com>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
3 files changed