Incrementing VERSION to 80.0.3963.1

TBR=abdulsyed@chromium.org

Change-Id: I1234ed6274284ffd791cba1730e0f0c9249bb07b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1904236
Reviewed-by: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/branch-heads/3963@{#2}
Cr-Branched-From: 65133c003ab92d99f373b2a7fb9ee765ce47f4e1-refs/heads/master@{#713719}
diff --git a/chrome/VERSION b/chrome/VERSION
index e6e3473..92f32db 100644
--- a/chrome/VERSION
+++ b/chrome/VERSION
@@ -1,4 +1,4 @@
 MAJOR=80
 MINOR=0
 BUILD=3963
-PATCH=0
+PATCH=1