Network policy to allow LTPA job to connect to k8s API service

[leochr]

Create an egress network policy to allow the LTPA Job to access the k8s API service (kubernetes.default.svc).

Service address can't be referred in network policies. Instead look up the IP address of the API service and use it instead. Operator pod should be injected with the service details as an env variable

[kabicin]

Fix is ready for review for WLO WASdev/websphere-liberty-operator#615, if that looks good I can also port the changes to OLO.

[kabicin]

Rebased onto main and fixed small issue with the bundle.
WLO: WASdev/websphere-liberty-operator#615
OLO: #573
Tests: https://github.ibm.com/websphere/operators/pull/123