Add VPC peering config for dit-staging_datasci-dev
Add VPC peering config for dit-staging_datasci-dev

As discussed in Zendesk #3759028.

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