Incrementing VERSION to 80.0.3971.1

TBR=benmason@chromium.org

Change-Id: I1785851350be773f227f6879169acfcddb67f5d9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1923048
Reviewed-by: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/branch-heads/3971@{#2}
Cr-Branched-From: e7e49fe05664a8d64c44fbb5767d204634ccd541-refs/heads/master@{#716397}
1 file changed