Create integration test to check KongUpstreamPolicy status gets properly set

[mlavacca]

Problem Statement

The KongUpstreamPolicy controller builds and enforce the status in the KongUpstreamPolicy resources. We need to add an integration test that checks the following

• an HTTPRoute references two services: both services reference the same policy. The Policy Status must reflect this situation by setting proper ancestors conditions
• an HTTPRoute references two services: service A references policy A and service B references policy B. The Policy Status must reflect this situation by setting proper ancestors conditions
• an Ingress references two services: both services reference the same policy. The Policy Status must reflect this situation by setting proper ancestors conditions
• an Ingress references two services: service A references policy A and service B references policy B. The Policy Status must reflect this situation by setting proper ancestors conditions
• The programmed condition must be checked as well, to ensure the kongUpstreamPolicy has been properly applied in the dataplane.

Acceptance Criteria

• the above tests are added

[mlavacca]

Blocked by #4932, #5293, #5249