Roll recipe dependencies (trivial).

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

fuchsia:
https://fuchsia.googlesource.com/infra/recipes/+log/b6643c5fc644e4258d6c4034a94d08919db5def2~..386254bf3f958cd9927f2adb8f619c244b443e75
  b6643c5 (phosek@google.com)
      [clang_ml_training] Use correct job name
  386254b (phosek@google.com)
      [clang_ml_training] Only download model if passed to recipe

recipe_engine:
https://chromium.googlesource.com/infra/luci/recipes-py/+log/97386e6af120fc0e85cdcb8935101ffe0bb94d65~..7f5b58339f26a891dd2a7e1aa2be8c0c5c17076e
  97386e6 (mohrr@google.com)
      [python3] Make file resources py3-compatible
  5e01592 (bpastene@chromium.org)
      resultdb: Allow limit to be passed as 0 in query().
  302c087 (mohrr@google.com)
      [python3] Replace xrange() and iteritems() calls
  9193c33 (yiwzhang@google.com)
      regen the recipe doc
  7f5b583 (chromium-autoroll@skia-public.iam.gserviceaccount.com)
      Roll CAS Client from e9348203ea8f to 3e1f1f7a109e

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

R=mohrr@google.com

Recipe-Tryjob-Bypass-Reason: Autoroller
Bugdroid-Send-Email: False
Change-Id: I98ef87cd16300ffadf234bce902b2d00cde41101
Reviewed-on: https://pigweed-review.googlesource.com/c/infra/recipes/+/59920
Bot-Commit: Recipe Deps Roller <recipe-deps-roller@pigweed.google.com.iam.gserviceaccount.com>
Commit-Queue: Auto-Submit <auto-submit@pigweed.google.com.iam.gserviceaccount.com>
Pigweed-Auto-Submit: Rob Mohr <mohrr@google.com>