Roll recipe dependencies (trivial).

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

build:
  https://crrev.com/e90ae452690dbbfe6866a8088b6db4ac767a7b82 (gbeaty@chromium.org)
    Remove the disable_tests field from BotSpec.

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: I3839c60a68aaf31342a9b075ea7c5c170d2645ec
Reviewed-on: https://flutter-review.googlesource.com/c/recipes/+/2845
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>