Update DevTools DEPS (trusted)

Rolling third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/ee429f3..237b84e

Roll created at https://cr-buildbucket.appspot.com/build/8722450080184435457

Bug: none
Change-Id: Ifcbea0f8b1acb1cda11020d5348db69a4912fd12
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/6285005
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': 'd1ed719a33042a69290036402227949ec4d11877',
 
   'depot_tools_url': 'https://chromium.googlesource.com/chromium/tools/depot_tools.git',
-  'depot_tools_revision': 'ee429f3694c51421c8b2f2af52049102ef43bca9',
+  'depot_tools_revision': '237b84e76cc330406323bca01ecc44b828291bf5',
 
   'inspector_protocol_url': 'https://chromium.googlesource.com/deps/inspector_protocol',
   'inspector_protocol_revision': '940abfc668be2591483f7132145593c6a047f3cf',