Update DevTools DEPS (trusted)

Rolling third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/0b1d80a..e68bbfc

Roll created at https://cr-buildbucket.appspot.com/build/8713571576798905777

Bug: none
Change-Id: Ic136aecca5c6f0d428db1316d0882612b2e3d0cf
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/6598345
Bot-Commit: Devtools Autoroller <devtools-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: 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': 'c618f33e12ddc6f53c21271e7b44ddef3ec44de3',
 
   'depot_tools_url': 'https://chromium.googlesource.com/chromium/tools/depot_tools.git',
-  'depot_tools_revision': '0b1d80ab9e9f1413234641d193639e5daa92dd5b',
+  'depot_tools_revision': 'e68bbfc57229f6c1e366f456b92f25a7a2473c37',
 
   'inspector_protocol_url': 'https://chromium.googlesource.com/deps/inspector_protocol',
   'inspector_protocol_revision': '6d1ae0f13aae6ad381ca31b17b88a0f5af29ca94',