Incrementing VERSION to 120.0.6083.1

Change-Id: I55799d1b3e22948c8cb8bb34fc205e9a03b9ee62
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4962881
Bot-Commit: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/branch-heads/6083@{#2}
Cr-Branched-From: 4c02ca1-refs/heads/main@{#1213214}

chrome/VERSION

@@ -1,4 +1,4 @@
 MAJOR=120
 MINOR=0
 BUILD=6083
-PATCH=0
+PATCH=1