Incrementing VERSION to 108.0.5326.3

Change-Id: I12509b8e5b4cc73cdaa380b65e3945e05fd3622c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3924217
Bot-Commit: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/branch-heads/5326@{#6}
Cr-Branched-From: 1f40050-refs/heads/main@{#1051738}

chrome/VERSION

@@ -1,4 +1,4 @@
 MAJOR=108
 MINOR=0
 BUILD=5326
-PATCH=2
+PATCH=3