Bump helm version to 3.2.0

This commit adds the ui-banners setting to Rancher, which will be used to facilitate customizable header / footer banners on the Rancher UI.

Note: GET requests to the setting are unauthenticated so that they can be queried from the login page.

Add EKS specific subnet validation

Previously, subnets were editable on EKS clusters which does not represent the architecture of
Kontainer Driver which does not allow for editing of subnets after the cluster has been provisioned.

This was done as a validator due to the difficulty of adding additional fields to the kontainer
engine type since this requires regenerating the protobuff files for Kontainer Driver.

Lasso

check for nil upgradeStrategy

We initialize node upgrade strateg in cluster store,
but on rancher upgrade if a cluster automatically gets
upgraded, it'll panic because of nil upgradeStrategy

No need to check for storageClass existence while creating a pvc

Force redeploy cluster-monitoring if workload doesn't exist

Revert "Refactor for lasso"

Refactor for lasso

Check app projectId during edit

[forwardport] Ignore error when adding indexer

Problem:
If a indexer already exists none of the controllers are registered so
clusterauthtokens do not get pushed downstream among other issues

Solution:
Ignore the indexer conflict error, this is expected after the first set
of controllers register.

Add introductory support for recognizing k3os clusters

When a k3s cluster is imported there is a possiblilty that it will be a
k3os cluster. In that case, k3s specific code may no longer be
applicable, ie: the cluster upgrade will require a different plan than a
normal k3s cluster.

Now, when a cluster is imported we will look for nodes with
"k3os.io/mode" labels on them to determine if the cluster is k3os.

Update helm version to 2.16.5