OWNERS: Update Andrew's email address

I plan on committing with the andrew@codeconstruct.com.au address in my
Signed-off-by tags, so update OWNERS to reflect that.

Change-Id: Ieac87268ece13f56dfbd41a44c6690d57cda46f0
Signed-off-by: Andrew Jeffery <andrew@codeconstruct.com.au>
diff --git a/OWNERS b/OWNERS
index aca76fa..e8d400f 100644
--- a/OWNERS
+++ b/OWNERS
@@ -45,7 +45,7 @@
 
 openbmc:
 - name: Andrew Jeffery
-  email: andrew@aj.id.au
+  email: andrew@codeconstruct.com.au
   discord: arj
 - name: Brad Bishop
   email: bradleyb@fuzziesquirrel.com