v23: Add a 5-day ago test to the default regression test config.
v23: Add a 5-day ago test to the default regression test config.

This was always the intention, but until today it didn't pass since
we broke compatibility last week.  The regular jenkins test is already
using this config, this will add it to the presubmits as well.

Change-Id: Icd5644939dfbcaef67efa5e55868537299c6bf55

vanadium/go.jiri,vanadium/go.jiri