[Spark Operator] Get mutating webhook working, fix prometheus error #2166

Job	Run time
Test charts	2m 46s
Helm Chart Install Sanity (coredns-updater)	5s
Helm Chart Install Sanity (dcgm-exporter)	5s
Helm Chart Install Sanity (dex-crds)	5s
Helm Chart Install Sanity (empty)	4s
Helm Chart Install Sanity (fuse-csi-driver)	4s
Helm Chart Install Sanity (gpu-feature-discovery)	4s
Helm Chart Install Sanity (iguazio-system)	8s
Helm Chart Install Sanity (mpi-operator)	8s
Helm Chart Install Sanity (node-feature-discovery)	5s
Helm Chart Install Sanity (pod-gpu-metrics-exporter)	4s
Helm Chart Install Sanity (prebaked-registry)	5s
Helm Chart Install Sanity (provazio)	7s
Helm Chart Install Sanity (pvc)	7s
Helm Chart Install Sanity (scaler)	8s
Helm Chart Install Sanity (spark-operator)	4s
Helm Chart Install Sanity (tenant)	8s
Helm Chart Install Sanity (tenant-creator)	8s
Helm Chart Install Sanity (tensorboard)	5s
Helm Chart Install Sanity (v3io-configs)	5s
Helm Chart Install Sanity (v3io-webapi)	8s
Helm Chart Install Sanity (v3iod)	6s
	4m 49s

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