autoscale E2E test doesn't pass in OpenShift

[iblancasa]

The autoscale E2E is failing when is runnned in an OpenShift cluster.

The test creates two OpenTelemetry Collectors. Each one deploys one Horizontal Pod Autoscaler:

$ kubectl get pods
NAME                                 REFERENCE                                         TARGETS   MINPODS   MAXPODS   REPLICAS   AGE
simplest-collector                   OpenTelemetryCollector/simplest                   0%/90%    1         2         1          10m
simplest-set-utilization-collector   OpenTelemetryCollector/simplest-set-utilization   0%/50%    1         2         1          10m

Later, it tries to match them with the CRs from tests/e2e/autoscale/00-assert.yaml. Those CRs check for HPAs whose apiVersion are autoscaling/v1 (simplest-collector) and autoscaling/v2beta2 (simplest-set-utilization-collector). In OpenShift (4.11) both are created with an apiVersion with the value autoscaling/v2.

Steps to reproduce

1. Create an OpenShift cluster (4.11 in my case)
2. Build and deploy the OpenTelemetry Collector Operator
3. Run the autoscale E2E test ($ kuttl test --test autoscale)

Also, the test can be flaky since it always waits for a fixed CPU % utilization (that cannot be reached depending on the resources of the machine where the tests are running).