Update DevTools DEPS (trusted)

Rolling third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/ff733a6..32e86cc

Roll created at https://cr-buildbucket.appspot.com/build/8723503269623031409

Bug: none
Change-Id: If2bbb1d350b8d22c61f74a741c0081119bcdc5e0
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/6246506
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': 'fa96185dc5d13c6666b4850d03cddc06be4e4f35',
 
   'depot_tools_url': 'https://chromium.googlesource.com/chromium/tools/depot_tools.git',
-  'depot_tools_revision': 'ff733a6496a4ff67618f4b131bb18b66769f9a62',
+  'depot_tools_revision': '32e86cc3b13beb2f6c2d32c72bc5e7ec772db202',
 
   'inspector_protocol_url': 'https://chromium.googlesource.com/deps/inspector_protocol',
   'inspector_protocol_revision': '940abfc668be2591483f7132145593c6a047f3cf',