Incrementing VERSION to 103.0.5060.4

Change-Id: I06ed1c59562c40b105351384d39ecb5b0e1861e7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3648611
Bot-Commit: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/branch-heads/5060@{#9}
Cr-Branched-From: b83393d-refs/heads/main@{#1002911}

chrome/VERSION

@@ -1,4 +1,4 @@
 MAJOR=103
 MINOR=0
 BUILD=5060
-PATCH=3
+PATCH=4