Incrementing VERSION to 74.0.3729.68

TBR=kariah@chromium.org

Change-Id: Ie59d6c984af4aa89d598a990b95e0adf5a075dca
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1557079
Reviewed-by: chrome-release-bot@chromium.org <chrome-release-bot@chromium.org>
Cr-Commit-Position: refs/branch-heads/3729@{#690}
Cr-Branched-From: d4a8972e30b604f090aeda5dfff68386ae656267-refs/heads/master@{#638880}
1 file changed