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/77dab46748173a653ad722155b6e70e8d0de4fa8 (rwkeane@google.com)
    Openscreen Code Coverage: Bug Fix
fuchsia:
  https://crrev.com/3f2fab84bf179eb49a660d48285b22b0ecec61b1 (olivernewman@google.com)
    [vdl] Specify platform variable in package name
  https://crrev.com/ae2c857f5c7347dce79cac8e9fcb268509e6c6be (atyfto@google.com)
    [fxt] Add fxt recipe module

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: I65fa834c5cd4299193b098ef2882c23f23078567
Reviewed-on: https://flutter-review.googlesource.com/c/recipes/+/2991
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>