app-benchmarks/stress-ng: Upgrade to 0.13.09

- Copy 0.13.09 ebuild from upstream by manual
- Change EAPI to 7
- Change keywords to any
- Run ebuild command to create Manifest

BUG=b:209917181
TEST=emerge with arm and amd64 boards

Change-Id: Ic80267d3f53aae356240786a342a0c231bbc568b
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/portage-stable/+/3372391
Tested-by: Kansho Nishida <kansho@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Kansho Nishida <kansho@chromium.org>