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/8811724088478115441

depot_tools:
https://chromium.googlesource.com/chromium/tools/depot_tools.git/+/f2b0421fff998b41edd36d02252a2c9690c21394
  f2b0421 (brucedawson@chromium.org)
      Report when vpython (Python 2) is run during presubmits

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

R=chillers@google.com

Recipe-Tryjob-Bypass-Reason: Autoroller
Bugdroid-Send-Email: False
Change-Id: I80a2b889d32b7be708f65636ef0a00e2010d1ddf
Reviewed-on: https://flutter-review.googlesource.com/c/recipes/+/31102
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>
diff --git a/infra/config/recipes.cfg b/infra/config/recipes.cfg
index 4912a5c..066030a 100644
--- a/infra/config/recipes.cfg
+++ b/infra/config/recipes.cfg
@@ -25,7 +25,7 @@
   "deps": {
     "depot_tools": {
       "branch": "refs/heads/main",
-      "revision": "a9467d8216950a1238f9eba9e67c60144309caff",
+      "revision": "f2b0421fff998b41edd36d02252a2c9690c21394",
       "url": "https://chromium.googlesource.com/chromium/tools/depot_tools.git"
     },
     "fuchsia": {