Update Metadata Cache

Cr-Build-Url: https://cr-buildbucket.appspot.com/build/8753519569594554497
Change-Id: Ife1e6d1f98daf5d5a17165020f296a03c6cdbb56
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/portage-stable/+/5370944
Bot-Commit: ChromeOS Prod (Robot) <chromeos-ci-prod@chromeos-bot.iam.gserviceaccount.com>
6 files changed