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

Change-Id: I81d8267b73c3dbd0d2f76e8c80fa2ae8b6f386df
Reviewed-on: https://go-review.googlesource.com/c/go/+/392894
Trust: Heschi Kreinick <heschi@google.com>
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
diff --git a/VERSION b/VERSION
index d4dd524..54ba52e 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-go1.18rc1
\ No newline at end of file
+go1.18
\ No newline at end of file