Updating trunk VERSION from 5974.0 to 5975.0

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

Change-Id: Ib5dbc261c302fce0ed00a1f91e12b33c08ba71f5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4815720
Bot-Commit: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#1188780}

chrome/VERSION

@@ -1,4 +1,4 @@
 MAJOR=118
 MINOR=0
-BUILD=5974
+BUILD=5975
 PATCH=0