Update DevTools DEPS (trusted)

Rolling third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/77e8bd6..cbead19

Roll created at https://cr-buildbucket.appspot.com/build/8728395506336441681

Bug: none
Change-Id: I7e05d9e40fe19ebbd5517789e4cacd3ad6f3fa04
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/6096343
Commit-Queue: Devtools Autoroller <devtools-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Bot-Commit: Devtools Autoroller <devtools-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>

Author: devtools-ci-autoroll-builder

DEPS

@@ -18,7 +18,7 @@ vars = {
   'buildtools_revision': '7d7540c349fd6e5fc4b2241ee8aa3b17ed7261b6',
 
   'depot_tools_url': 'https://chromium.googlesource.com/chromium/tools/depot_tools.git',
-  'depot_tools_revision': '77e8bd63857b5a623791724373535a7dd40f7ed5',
+  'depot_tools_revision': 'cbead190e5a4badb427fda83c7a57868b634511e',
 
   'inspector_protocol_url': 'https://chromium.googlesource.com/deps/inspector_protocol',
   'inspector_protocol_revision': '69d69ddf3aa698b171886551a4a672c5af1ad902',