Incrementing VERSION to 56.0.2924.66

Cr-Commit-Position: refs/branch-heads/2924@{#775}
Cr-Branched-From: 3a87aecc31cd1ffe751dd72c04e5a96a1fc8108a-refs/heads/master@{#433059}
diff --git a/chrome/VERSION b/chrome/VERSION
index 59fd797..a81a2e1 100644
--- a/chrome/VERSION
+++ b/chrome/VERSION
@@ -1,4 +1,4 @@
 MAJOR=56
 MINOR=0
 BUILD=2924
-PATCH=65
+PATCH=66