Release v0.15.0

[gianlucam76]

🚀 New Features:

start rolling upgrade for Deployment, StatefulSet, DaemonSet instances when a mounted ConfigMap, Secret changes. ClusterProfile has a knob, Reloader. When this knob is set to true, any Deployment, StatefulSet, DaemonSet instance deployed by Sveltos because of such ClusterProfile will have a rolling upgrade triggered by Sveltos when any mounted ConfigMap/Secret changes.

🐛 Bug Fixed:

1. some Sveltos components (classifiers, addon-compliance-controller, etc) used to go in CrashLoopBackOff if clusterAPI was not installed in the management cluster;
2. cluster classification based on Kubernetes version was not working properly on GKE clusters.