Updating trunk VERSION from 4373.0 to 4374.0

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

Change-Id: I7f7b10525e380d3733b2df0a79bcd03d14dd573e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2601353Reviewed-by: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#839722}

chrome/VERSION

 MAJOR=89
 MINOR=0
-BUILD=4373
+BUILD=4374
 PATCH=0