Incrementing VERSION to 74.0.3718.8

TBR=mmoss@chromium.org

Change-Id: I73c5a44144f73a52c8dfd5afbee187b945ccff18
Reviewed-on: https://chromium-review.googlesource.com/c/1494794
Reviewed-by: chrome-release-bot@chromium.org <chrome-release-bot@chromium.org>
Cr-Commit-Position: refs/branch-heads/3718@{#18}
Cr-Branched-From: 79a6357d6b74636abcf7e06032cf5f48b99e6207-refs/heads/master@{#635377}
1 file changed