[release-branch.go1.10-security] go1.10.6

Change-Id: I1a05884b2df711da15d2ca3f09fcb6fc4a3264c7
Reviewed-on: https://team-review.git.corp.google.com/c/377324
Reviewed-by: Andrew Bonventre <andybons@google.com>

VERSION

diff --git a/VERSION b/VERSION
index 5635a98..3bb87bf 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-go1.10.5
\ No newline at end of file
+go1.10.6
\ No newline at end of file