Change hook imagePullPolicy to always

This is more online with the parser and allows them to run in cluster
with extremly high security requirements / or hard enforced multi tenancy.

See: https://kubernetes.io/docs/concepts/containers/images/#use-cases

Author: J12934

operator/controllers/execution/scans/hook_reconciler.go

@@ -390,7 +390,7 @@ func (r *ScanReconciler) createJobForHook(hook *executionv1.ScanCompletionHook,
 							Image:           hook.Spec.Image,
 							Args:            cliArgs,
 							Env:             append(hook.Spec.Env, standardEnvVars...),
-							ImagePullPolicy: "IfNotPresent",
+							ImagePullPolicy: "Always",
 							Resources: corev1.ResourceRequirements{
 								Requests: corev1.ResourceList{
 									corev1.ResourceCPU:    resource.MustParse("200m"),