Incrementing VERSION to 118.0.5974.1

Change-Id: I1a5663d387455871b2c1e20b99844d728303172a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4814551
Bot-Commit: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/branch-heads/5974@{#2}
Cr-Branched-From: f7b180e-refs/heads/main@{#1188764}

chrome/VERSION

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