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/8757967861216908161

depot_tools:
https://chromium.googlesource.com/chromium/tools/depot_tools.git/+/2bc81cdf4f2f384527eb2e3a39f2e38a4a8193b5
  2bc81cd (gbeaty@chromium.org)
      Add a canned check for enforcing infra freezes.

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@grotations.appspotmail.com

Recipe-Tryjob-Bypass-Reason: Autoroller
Ignore-Freeze: Autoroller
Bugdroid-Send-Email: False
Change-Id: I8be0a60769d07424816d8b248d71c4513c65a5c2
Reviewed-on: https://flutter-review.googlesource.com/c/recipes/+/54385
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 fb999df..f8078b1 100644
--- a/infra/config/recipes.cfg
+++ b/infra/config/recipes.cfg
@@ -22,12 +22,12 @@
   "deps": {
     "dart": {
       "branch": "refs/heads/main",
-      "revision": "11f879b3b3d64d23905a8a7095bcbe1c07238aa3",
+      "revision": "eca4ac52053c6dbac0f31d4f2dd47bf04f7c92ce",
       "url": "https://dart.googlesource.com/recipes.git"
     },
     "depot_tools": {
       "branch": "refs/heads/main",
-      "revision": "097edbaba661cc7cac3f02d31ff4b465d87286c4",
+      "revision": "2bc81cdf4f2f384527eb2e3a39f2e38a4a8193b5",
       "url": "https://chromium.googlesource.com/chromium/tools/depot_tools.git"
     },
     "fuchsia": {