Roll recipe dependencies (trivial).

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

fuchsia:
  https://crrev.com/bed6dea46177081f4affd91b9a518c5e00b38781 (maheshsr@google.com)
    Remove rerun hour prefix in the builder name
  https://crrev.com/acf9769627808c80538dc2d1e743e40fb65e1839 (olivernewman@google.com)
    [docs] Delete/update outdated parts of README

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

TBR=godofredoc@google.com, keyonghan@google.com, wutong@google.com

Recipe-Tryjob-Bypass-Reason: Autoroller
Bugdroid-Send-Email: False
Change-Id: Ic7835377027fcad08707a79c9d854797608016d6
Reviewed-on: https://flutter-review.googlesource.com/c/recipes/+/3720
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>