Updating trunk VERSION from 3605.0 to 3606.0

# This is an automated release commit.
# Do not revert without consulting chrome-pmo@google.com.
NOAUTOREVERT=true
TBR=kariah@chromium.org

Change-Id: I3eb5fb678ab86294180a942b607e92e9da53e5e3
Reviewed-on: https://chromium-review.googlesource.com/c/1325531Reviewed-by: chrome-release-bot@chromium.org <chrome-release-bot@chromium.org>
Cr-Commit-Position: refs/heads/master@{#606333}

chrome/VERSION

 MAJOR=72
 MINOR=0
-BUILD=3605
+BUILD=3606
 PATCH=0