Incrementing VERSION to 80.0.3970.5

TBR=kariah@chromium.org

Change-Id: Ief2fdae80869712d33ba68af62247851ba9cdd9c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1922789
Reviewed-by: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/branch-heads/3970@{#9}
Cr-Branched-From: 55f44515cd0b9e7739b434d1c62f4b7e321cd530-refs/heads/master@{#716057}
1 file changed