Updating trunk VERSION from 5114.0 to 5115.0

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

Change-Id: I86b9b513b38e1a12448e75e5d05d712c566949e2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3701152
Bot-Commit: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#1013255}