Incrementing VERSION to 116.0.5817.6

Change-Id: Ie06b8113e2722ecfec9d9e6a276bb6d8b2fc0554
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4599448
Bot-Commit: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/branch-heads/5817@{#10}
Cr-Branched-From: da0933a-refs/heads/main@{#1154142}

chrome/VERSION

@@ -1,4 +1,4 @@
 MAJOR=116
 MINOR=0
 BUILD=5817
-PATCH=5
+PATCH=6