Incrementing VERSION to 120.0.6070.1

Change-Id: I2dfb465b89ffb84a9b79ca12452ccfc29fd34f35
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4936237
Bot-Commit: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/branch-heads/6070@{#2}
Cr-Branched-From: f0135b1-refs/heads/main@{#1209973}

chrome/VERSION

@@ -1,4 +1,4 @@
 MAJOR=120
 MINOR=0
 BUILD=6070
-PATCH=0
+PATCH=1