[release-branch.go1.13] go1.13.3

Change-Id: If3364685f08585e3679fb5239bda127f440af473
Reviewed-on: https://go-review.googlesource.com/c/go/+/201826
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 7ff451f..5d371fc 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-go1.13.2
\ No newline at end of file
+go1.13.3
\ No newline at end of file