[release-branch.go1.18] go1.18.4

Change-Id: I9f64c24e60775e23095bf144fecad32e13fbd9d7
Reviewed-on: https://go-review.googlesource.com/c/go/+/417177
Run-TryBot: Gopher Robot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>

VERSION

@@ -1 +1 @@
-go1.18.3
+go1.18.4