Incrementing VERSION to 131.0.6778.37

Change-Id: I6a76c91f19e6f9585423562ce7b348d2ba1eaa21
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5996310
Bot-Commit: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/branch-heads/6778@{#1749}
Cr-Branched-From: b21671ca-refs/heads/main@{#1368529}

chrome/VERSION

 MAJOR=131
 MINOR=0
 BUILD=6778
-PATCH=36
+PATCH=37