golang: Update to 1.18.4

golang: Update to 1.18.4

Includes fixes for:

* CVE-2022-1705: net/http: improper sanitization of Transfer-Encoding
  header
* CVE-2022-1962: go/parser: stack exhaustion in all Parse* functions
* CVE-2022-28131: encoding/xml: stack exhaustion in Decoder.Skip
* CVE-2022-30630: io/fs: stack exhaustion in Glob
* CVE-2022-30631: compress/gzip: stack exhaustion in Reader.Read
* CVE-2022-30632: path/filepath: stack exhaustion in Glob
* CVE-2022-30633: encoding/xml: stack exhaustion in Unmarshal
* CVE-2022-30635: encoding/gob: stack exhaustion in Decoder.Decode
* CVE-2022-32148: net/http/httputil: NewSingleHostReverseProxy - omit
  X-Forwarded-For not working

Signed-off-by: Jeffery To <jeffery.to@gmail.com>