Update Package github.com/openshift/api

[shirady]

Explain the changes

1. Update package github.com/openshift/api

Issues: Fixed #xxx / Gap #xxx

1. none

Testing Instructions:

Local cluster:

Deploy noobaa on MInikube or Rancher Desktop (see guide).
Note: nb is an alias that runs the local operator from build/_output/bin (alias created by devenv).

1. Run: . ./devenv.sh
2. Build the image make all.
3. Install noobaa nb install --dev --noobaa-image <noobaa-core-image> -n <my-namespace>

Remote cluster:

Using cluster bot 'launch aws 4.14'

1. Run: . ./devenv.sh
2. Build the image (added flag to build for Linux since I have MacOS): DOCKER_DEFAULT_PLATFORM=linux/amd64 GOARCH=amd64 make all.
3. Then tag it to your Quay account and push the image:
   docker tag noobaa/noobaa-operator:5.15.0 quay.io/<my-user>/noobaa-operator:<my-tag>
docker push quay.io/<my-user>/noobaa-operator:<my-tag>
4. Install noobaa nb install --dev --noobaa-image '<noobaa-image-from-docker-hub>' --operator-image 'quay.io/<my-user>/noobaa-operator:<my-tag>' -n <my-namespace>

• Doc added/updated
• Tests added

[shirady]

Additional instructions on how I installed the package:

I tried to update by running: go get -u github.com/openshift/api and got errors:

	github.com/openshift/api imports
		k8s.io/api/batch/v2alpha1: cannot find module providing package k8s.io/api/batch/v2alpha1
	github.com/openshift/api imports
		k8s.io/api/settings/v1alpha1: cannot find module providing package k8s.io/api/settings/v1alpha1

Moved to manual steps:

1. Delete the line of github.com/openshift/api
   (it was github.com/openshift/api v3.9.1-0.20190924102528-32369d4db2ad+incompatible)
2. Install the an updated package: go get -u github.com/openshift/api
3. Then run:
   make vendor
make gen ; make gen-api ; make
4. I saw that the package was added in a separate require, so I moved it to the line it was originally deleted and ran:
   make clean
make vendor
make gen ; make gen-api ; make