Roll recipe dependencies (trivial).

This is an automated CL created by the recipe roller. This CL rolls
recipe changes from upstream projects (depot_tools, fuchsia) into this repository.

The build that created this CL was
https://ci.chromium.org/b/8771425290793811137

depot_tools:
https://chromium.googlesource.com/chromium/tools/depot_tools.git/+/6c8d2a9ce540ae481fefd3028aa91753c7ed796c
  6c8d2a9 (sokcevic@chromium.org)
      Revert "Check if DEPS git is not in git submodules"

fuchsia:
https://fuchsia.googlesource.com/infra/recipes.git/+/92dfa4a5258f87a7bd3cf145293b53a2328fb1ad
  92dfa4a (mcgrathr@google.com)
      [gcc_toolchain] Plumb AR and RANLIB

Please check the following references for more information:
- autoroller, https://chromium.googlesource.com/infra/luci/recipes-py/+/main/doc/workflow.md#autoroller
- rollback, https://chromium.googlesource.com/infra/luci/recipes-py/+/main/doc/workflow.md#rollback
- cross-repo dependencies, https://chromium.googlesource.com/infra/luci/recipes-py/+/main/doc/cross_repo.md

Use https://goo.gl/noib3a to file a bug.

R=flutter-infra@grotations.appspotmail.com

Recipe-Tryjob-Bypass-Reason: Autoroller
Ignore-Freeze: Autoroller
Bugdroid-Send-Email: False
Change-Id: I3f3b9f871a7e781389a20dc752f586934cf04e6c
Reviewed-on: https://flutter-review.googlesource.com/c/recipes/+/50286
Bot-Commit: flutter-prod-builder@chops-service-accounts.iam.gserviceaccount.com <flutter-prod-builder@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: flutter-prod-builder@chops-service-accounts.iam.gserviceaccount.com <flutter-prod-builder@chops-service-accounts.iam.gserviceaccount.com>