[release-branch.go1.18] go1.18.1

Change-Id: If2b91acf7fb4a55cded985d6f2a2ab058c1b7bd3
Reviewed-on: https://go-review.googlesource.com/c/go/+/399818
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
diff --git a/VERSION b/VERSION
index 54ba52e..79329c7 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-go1.18
\ No newline at end of file
+go1.18.1
\ No newline at end of file