Roll recipe dependencies (trivial).

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

The build that created this CL was
https://ci.chromium.org/b/8686354736198532129

depot_tools:
https://chromium.googlesource.com/chromium/tools/depot_tools.git/+log/be9dc5976ef8fccb58a82ba75794ef03676c9a64~..ce1ebad2c35c9387186f01d77edeea28a254c955
  be9dc59 (rop@google.com)
      Require valid update mechanism exceptions
  ce1ebad (rop@google.com)
      Add various licenses to allowlist

Please check the following references for more information:
- autoroller, https://chromium.googlesource.com/infra/luci/recipes-py/+/main/doc/workflow.md#autoroller
- rollback, https://chromium.googlesource.com/infra/luci/recipes-py/+/main/doc/workflow.md#rollback
- cross-repo dependencies, https://chromium.googlesource.com/infra/luci/recipes-py/+/main/doc/cross_repo.md

Use https://goo.gl/noib3a to file a bug.

R=flutter-infra-notify+luci-recipes@google.com

Recipe-Tryjob-Bypass-Reason: Autoroller
Ignore-Freeze: Autoroller
Bugdroid-Send-Email: False
Change-Id: Ibc393dc2ca15cefbaf3db8e31ed3cf44481c6d19
Reviewed-on: https://flutter-review.googlesource.com/c/recipes/+/76700
Bot-Commit: 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>