Incrementing VERSION to 115.0.5737.3

Change-Id: I3c20c548631424ddf90b887cfaafee66543af947
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4479985
Bot-Commit: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/branch-heads/5737@{#5}
Cr-Branched-From: 897c097-refs/heads/main@{#1136427}

chrome/VERSION

@@ -1,4 +1,4 @@
 MAJOR=115
 MINOR=0
 BUILD=5737
-PATCH=2
+PATCH=3