Updating trunk VERSION from 4080.0 to 4081.0

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

Change-Id: I760a86ee5aa29d3e5ea9fb20190a4890dca9f9ec
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2093134Reviewed-by: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#748000}

chrome/VERSION

 MAJOR=82
 MINOR=0
-BUILD=4080
+BUILD=4081
 PATCH=0