Incrementing VERSION to 108.0.5343.5

Change-Id: If4858d5d92560aaea9d40c786a5e28af3ff06209
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3934716
Bot-Commit: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/branch-heads/5343@{#8}
Cr-Branched-From: d1a9027-refs/heads/main@{#1055528}

chrome/VERSION

@@ -1,4 +1,4 @@
 MAJOR=108
 MINOR=0
 BUILD=5343
-PATCH=4
+PATCH=5