Fix bug with Jobs

Occasionally we are having a bug when we are looping to find a job. Here is the err I am getting

```logs
logger.go:130: 2021-05-27T17:00:56.697Z WARN job pod is ready {"action": "Crdb Version Validator"}
logger.go:130: 2021-05-27T17:00:56.782Z WARN completed version checker {"action": "Crdb Version Validator", "CrdbCluster": "crdb-test-pxntwh/crdb", "calVersion": "v20.2.8", "containerImage": "cockroachdb/cockroach:v20.2.8"}
logger.go:130: 2021-05-27T17:00:56.782Z INFO request was interrupted {"CrdbCluster": "crdb-test-pxntwh/crdb"}
logger.go:130: 2021-05-27T17:00:56.782Z INFO reconciling CockroachDB cluster {"CrdbCluster": "crdb-test-pxntwh/crdb"}
logger.go:130: 2021-05-27T17:00:56.782Z INFO Running action with index: 0 and name: Decommission {"CrdbCluster": "crdb-test-pxntwh/crdb"}
logger.go:130: 2021-05-27T17:00:56.782Z WARN check decommission oportunities {"action": "decommission", "CrdbCluster": "crdb-test-pxntwh/crdb"}
logger.go:130: 2021-05-27T17:00:56.782Z INFO replicas decommisioning {"action": "decommission", "CrdbCluster": "crdb-test-pxntwh/crdb", "status.CurrentReplicas": 3, "expected": 3}
logger.go:130: 2021-05-27T17:00:56.782Z INFO Running action with index: 1 and name: VersionCheckerAction {"CrdbCluster": "crdb-test-pxntwh/crdb"}
logger.go:130: 2021-05-27T17:00:56.782Z WARN starting to check the crdb version of the container provided {"action": "Crdb Version Validator", "CrdbCluster": "crdb-test-pxntwh/crdb"}
logger.go:130: 2021-05-27T17:00:56.782Z WARN User set image.name, using that field instead of cockroachDBVersion {"action": "Crdb Version Validator", "CrdbCluster": "crdb-test-pxntwh/crdb"}
logger.go:130: 2021-05-27T17:00:56.794Z ERROR failed to reconcile job only err {"action": "Crdb Version Validator", "CrdbCluster": "crdb-test-pxntwh/crdb", "error": "Job.batch \"crdb-vcheck-27035580\" is invalid: spec.template: Invalid value: core.PodTemplateSpec{ObjectMeta:v1.ObjectMeta{Name:\"\", GenerateName:\"\", Namespace:\"\", SelfLink:\"\", UID:\"\", ResourceVersion:\"\", Generation:0, CreationTimestamp:v1.Time{Time:time.Time{wall:0x0, ext:0, loc:(*time.Location)(nil)}}, DeletionTimestamp:(*v1.Time)(nil), DeletionGracePeriodSeconds:(*int64)(nil), Labels:map[string]string{\"app.kubernetes.io/component\":\"database\", \"app.kubernetes.io/instance\":\"crdb\", \"app.kubernetes.io/name\":\"cockroachdb\", \"controller-uid\":\"a0255182-4d4a-4c98-af46-1cf5eee46a3e\", \"job-name\":\"crdb-vcheck-27035580\"}, Annotations:map[string]string(nil), OwnerReferences:[]v1.OwnerReference(nil), Finalizers:[]string(nil), ClusterName:\"\", ManagedFields:[]v1.ManagedFieldsEntry(nil)}, Spec:core.PodSpec{Volumes:[]core.Volume(nil), InitContainers:[]core.Container(nil), Containers:[]core.Container{core.Container{Name:\"crdb\", Image:\"cockroachdb/cockroach:v20.2.9\", Command:[]string{\"/bin/bash\"}, Args:[]string{\"-c\", \"/cockroach/cockroach.sh version | grep 'Build Tag:'| awk '{print $3}'; sleep 150\"}, WorkingDir:\"\", Ports:[]core.ContainerPort(nil), EnvFrom:[]core.EnvFromSource(nil), Env:[]core.EnvVar(nil), Resources:core.ResourceRequirements{Limits:core.ResourceList(nil), Requests:core.ResourceList(nil)}, VolumeMounts:[]core.VolumeMount(nil), VolumeDevices:[]core.VolumeDevice(nil), LivenessProbe:(*core.Probe)(nil), ReadinessProbe:(*core.Probe)(nil), StartupProbe:(*core.Probe)(nil), Lifecycle:(*core.Lifecycle)(nil), TerminationMessagePath:\"/dev/termination-log\", TerminationMessagePolicy:\"File\", ImagePullPolicy:\"IfNotPresent\", SecurityContext:(*core.SecurityContext)(nil), Stdin:false, StdinOnce:false, TTY:false}}, EphemeralContainers:[]core.EphemeralContainer(nil), RestartPolicy:\"Never\", TerminationGracePeriodSeconds:(*int64)(0xc0158f7b20), ActiveDeadlineSeconds:(*int64)(nil), DNSPolicy:\"ClusterFirst\", NodeSelector:map[string]string(nil), ServiceAccountName:\"cockroach-database-sa\", AutomountServiceAccountToken:(*bool)(0xc0158f7b28), NodeName:\"\", SecurityContext:(*core.PodSecurityContext)(0xc01b036500), ImagePullSecrets:[]core.LocalObjectReference(nil), Hostname:\"\", Subdomain:\"\", SetHostnameAsFQDN:(*bool)(nil), Affinity:(*core.Affinity)(nil), SchedulerName:\"default-scheduler\", Tolerations:[]core.Toleration(nil), HostAliases:[]core.HostAlias(nil), PriorityClassName:\"\", Priority:(*int32)(nil), PreemptionPolicy:(*core.PreemptionPolicy)(nil), DNSConfig:(*core.PodDNSConfig)(nil), ReadinessGates:[]core.PodReadinessGate(nil), RuntimeClassName:(*string)(nil), Overhead:core.ResourceList(nil), EnableServiceLinks:(*bool)(nil), TopologySpreadConstraints:[]core.TopologySpreadConstraint(nil)}}: field is immutable"}
logger.go:130: 2021-05-27T17:00:56.794Z WARN version checker {"action": "Crdb Version Validator", "CrdbCluster": "crdb-test-pxntwh/crdb", "job": "crdb-vcheck-27035580"}
logger.go:130: 2021-05-27T17:00:56.799Z WARN job pod is ready {"action": "Crdb Version Validator"}
logger.go:130: 2021-05-27T17:00:56.883Z WARN completed version checker {"action": "Crdb Version Validator", "CrdbCluster": "crdb-test-pxntwh/crdb", "calVersion": "v20.2.8", "containerImage": "cockroachdb/cockroach:v20.2.8"}
```

We are recovering, but this will look weird to an end user.