[release-branch.go1.12] go1.12.12

Change-Id: I3494e831beac93e322788f7bd76948b52f769f37
Reviewed-on: https://go-review.googlesource.com/c/go/+/201822
Run-TryBot: Alexander Rakoczy <alex@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Katie Hockman <katie@golang.org>
diff --git a/VERSION b/VERSION
index 524722c..8673d6c 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-go1.12.11
\ No newline at end of file
+go1.12.12
\ No newline at end of file