Restart Jenkins nightly
Restart Jenkins nightly

Since I implemented the govuk_jenkins::reload class we've seen some odd
behaviour which is resolved by restarting the Jenkins service. Going for
long periods doesn't play well with Jenkins so restart it each night as
the bell tolls midnight.

alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet