Updating trunk VERSION from 4670.0 to 4671.0

# This is an automated release commit.
# Do not revert without consulting chrome-pmo@google.com.
NOAUTOREVERT=true

Change-Id: I3b881022e08da0a58351b2e8c0dd276b2b0a8940
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3225419
Bot-Commit: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#931846}

chrome/VERSION

@@ -1,4 +1,4 @@
 MAJOR=97
 MINOR=0
-BUILD=4670
+BUILD=4671
 PATCH=0