Updating trunk VERSION from 4069.0 to 4070.0

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

Change-Id: Ief5104ec16e068219949abeee7a1862f4a0927b3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2071238Reviewed-by: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#744178}

chrome/VERSION

 MAJOR=82
 MINOR=0
-BUILD=4069
+BUILD=4070
 PATCH=0