Update DevTools DEPS (trusted)

Rolling build: https://chromium.googlesource.com/chromium/src/build/+log/f46b652..f29898e

Rolling buildtools: https://chromium.googlesource.com/chromium/src/buildtools/+log/f2081cf..7a4845b

Roll created at https://cr-buildbucket.appspot.com/build/8726708138533229457

Bug: none
Change-Id: I1c77184aeca3ec5ca291082f5a9783da945d6c41
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/6141957
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

@@ -12,10 +12,10 @@ vars = {
   'build_with_chromium': False,
 
   'build_url': 'https://chromium.googlesource.com/chromium/src/build.git',
-  'build_revision': 'f46b6520935dacdd81e487cf2e66eed6b9989e03',
+  'build_revision': 'f29898e8c7a80a79b946da404db0b7470fe524b0',
 
   'buildtools_url': 'https://chromium.googlesource.com/chromium/src/buildtools.git',
-  'buildtools_revision': 'f2081cfeaca8480a8607bdb96facf0a2529fce69',
+  'buildtools_revision': '7a4845bae0905502ffae946f63b6e9597a39bec3',
 
   'depot_tools_url': 'https://chromium.googlesource.com/chromium/tools/depot_tools.git',
   'depot_tools_revision': '58625e82c685426d441be5b422c9ad88e4867d20',