Run internal certificate expiry check daily
Run internal certificate expiry check daily

Previously the job was running every 30 days which is not enough to get an
alert in time.

alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf