Updating trunk VERSION from 5271.0 to 5272.0

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

Change-Id: I958178f5f554c9d13ad195bcda8c34c20967f183
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3864886
Bot-Commit: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#1040966}