Updating trunk VERSION from 3812.0 to 3813.0

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

Change-Id: Ic8164ba1f7364431304e93843c48121e477da3ef
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1639743Reviewed-by: chrome-release-bot@chromium.org <chrome-release-bot@chromium.org>
Cr-Commit-Position: refs/heads/master@{#665417}

chrome/VERSION

 MAJOR=77
 MINOR=0
-BUILD=3812
+BUILD=3813
 PATCH=0