Roll recipe dependencies (trivial).

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

build:
  https://crrev.com/14965b34d18d9b563c7b0f9ffe7b8b8e1a7d2840 (tikuta@chromium.org)
    Revert "Change chromium_tests config to add swarming command lines by default."
fuchsia:
  https://crrev.com/b4b6676d614be9004343c050560c3abb4c8f835e (tmandry@google.com)
    [rust_toolchain] Move runtime spec to generate_config.py

More info is at https://goo.gl/zkKdpD. Use https://goo.gl/noib3a to file a bug.

TBR=keyonghan@google.com

Recipe-Tryjob-Bypass-Reason: Autoroller
Bugdroid-Send-Email: False
Change-Id: I607010c68ba5ca4550908801591f1e7a12bce647
Reviewed-on: https://flutter-review.googlesource.com/c/recipes/+/6120
Reviewed-by: 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>