Updating trunk VERSION from 4386.0 to 4387.0

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

Change-Id: I4143b62d2dbafe909db0454ba7b013955da121bc
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2622330Reviewed-by: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#842368}

chrome/VERSION

 MAJOR=89
 MINOR=0
-BUILD=4386
+BUILD=4387
 PATCH=0