* Skip kube-api-access volume comparison
This hotfixes the incompatibility between the Operator and Kubernetes
1.21.
Kubernetes 1.21 started adding a new volume named
"kube-api-access-<random-suffix>" and that broke the comparison
function and resulted in an infinite loop.
Fixed helm not creating role permissions #424
Added ability to use custom k8s cluster domain #461
Fixed propagation of JENKINS_OPTS to seed-job agent #462
Fixed updating last backup #421
Made the targetPort in Jenkins pod a fixed value.
Previously users encountered issue with changing values.
Added test comparing expected and actual targetPort values.