Incrementing VERSION to 120.0.6073.1

Change-Id: I4a89e12197155d4da3bf419f7e6b688df3aa4e40
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4947291
Bot-Commit: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/branch-heads/6073@{#2}
Cr-Branched-From: aa74584-refs/heads/main@{#1210793}

chrome/VERSION

@@ -1,4 +1,4 @@
 MAJOR=120
 MINOR=0
 BUILD=6073
-PATCH=0
+PATCH=1