Updating trunk VERSION from 3828.0 to 3829.0

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

Change-Id: Id5cc6127be263bf768643c39c29efa3ed4abda6a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1660274
Reviewed-by: chrome-release-bot@chromium.org <chrome-release-bot@chromium.org>
Cr-Commit-Position: refs/heads/master@{#669560}