Updating trunk VERSION from 3595.0 to 3596.0

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

Change-Id: Ie4c4ad239f39a36521f83e5cefec57737bf37b73
Reviewed-on: https://chromium-review.googlesource.com/c/1303889Reviewed-by: chrome-release-bot@chromium.org <chrome-release-bot@chromium.org>
Cr-Commit-Position: refs/heads/master@{#603406}

chrome/VERSION

 MAJOR=72
 MINOR=0
-BUILD=3595
+BUILD=3596
 PATCH=0