extend expiration of temp box

To address #10, let's just extend the lifetime of the temp box. I don't
have a better idea. 4h should be enough..?
1 job for extendExpire in 3 minutes and 19 seconds (queued for 2 seconds)
latest
Status Job ID Name Coverage
  Simpletest
passed #13377
container
simple_test

00:03:19