Update paas-usage-events-collector to v0.5.0
Update paas-usage-events-collector to v0.5.0

Which includes:

- modified /report endpoint: alphagov/paas-usage-events-collector#7
- new /repair endpoint: alphagov/paas-usage-events-collector#6

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