Chore: refactor to use new schema changing queries

lib/admin/pairing.js

@@ -25,7 +25,7 @@ function totem (hostname, name) {
       const buf = Buffer.concat([caHash, token, Buffer.from(hostname)])
       const sql = 'insert into pairing_tokens (token, name) values ($1, $3), ($2, $3)'
 
-      return db.none(sql, [hexToken, caHexToken, name])
+      return db.$none(sql, [hexToken, caHexToken, name])
         .then(() => bsAlpha.encode(buf))
     })
 }