Incrementing VERSION to 73.0.3683.13

TBR=kariah@chromium.org

Change-Id: I0ca26837c622dffce6bad899f0248ab092147a6a
Reviewed-on: https://chromium-review.googlesource.com/c/1448333
Reviewed-by: chrome-release-bot@chromium.org <chrome-release-bot@chromium.org>
Cr-Commit-Position: refs/branch-heads/3683@{#100}
Cr-Branched-From: e51029943e0a38dd794b73caaf6373d5496ae783-refs/heads/master@{#625896}
1 file changed