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/059afee6f7bae857a8486d3f229a385ebbf321e2 (kimstephanie@google.com)
    Update recipe config for Mac10.15 Tests
fuchsia:
  https://crrev.com/f47d20f844b3ce74badfc26dc5fd99fd4481116b (mseaborn@google.com)
    [swarming_retry] Simplify error handling in the "process results" step
  https://crrev.com/56aab0cefaeb86940534848a8c4a0d4b83a41735 (dnordstrom@google.com)
    [firebase_docs][rust] Remove redundant third_party rustdoc step
  https://crrev.com/9fd30bb5635618678b950e7d4b13d98629084df6 (garymm@google.com)
    [swarming_retry] Use milo rather than swarming UI for Led tasks

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: I41d7e16a44732f7ec458b17afe269a58af1f5c56
Reviewed-on: https://flutter-review.googlesource.com/c/recipes/+/3722
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>