Propage WebProxyHosts update

[juldrixx]

Q	A
Bug fix?	no
New feature?	yes
API breaks?	no
Deprecations?	no
Related tickets	#390
License	Apache 2.0

What's in this PR?

When the webProxyHosts of a NifiCluster is updated, the DNSNames of the node's NifiUsers are updated, and if the DNSNames of a NifiUser are updated, the associated Certificate is updated.

Why?

Because if we want to add a new host, if we don't update the certificate, the trustore won't be updated and the host won't be valid in NiFI.

Checklist

• Implementation tested
• Error handling code meets the guideline
• Logging code meets the guideline
• User guide and development docs updated (if needed)
• Append changelog with changes

[juldrixx]

I don't know if I should pass the cluster information, because it can cause the restart of the cluster.

	if err = k8sutil.Reconcile(log, client, issuer, cluster, &cluster.Status); err != nil {
		return err
	}
        ...
	if err = k8sutil.Reconcile(log, client, issuer, cluster, &cluster.Status); err != nil {
		return err
	}
        ...
	if err = k8sutil.Reconcile(log, client, cert, cluster, &cluster.Status); err != nil {
		return err
	}
        ...
        if err = k8sutil.Reconcile(log, client, secret, cluster, &cluster.Status); err != nil {
		return err
	}
        ...
	if err = k8sutil.Reconcile(log, client, user, cluster, &cluster.Status); err != nil {
		return err
	}

[mh013370]

No major concerns after review