Updating trunk VERSION from 4036.0 to 4037.0

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

Change-Id: I2000198ca283371d99a41a122015dc11988d16b7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2015422Reviewed-by: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#734342}

chrome/VERSION

 MAJOR=81
 MINOR=0
-BUILD=4036
+BUILD=4037
 PATCH=0