Merge pull request rancher#4696 from cmurphy/aws-cluster-case-2.5.9

Fix EKS cluster ID string case

Merge pull request rancher#4699 from codyrancher/1.20-k8s-2.5.9-fixes

Adding K8S 1.20 as an available version for EKS

Add 1.19 to eks versions for official support

Add cluster id to aws request handler and populate on edit eksv2 (ran…

…cher#4689)

Merge pull request rancher#4643 from westlywright/2.5.bug.gke.zones

[2.5.x] GKEv2 Zonal Location Edit

Merge pull request rancher#4617 from westlywright/sec.update.xmlhttp

[2.5.x] Dependency Update

Merge pull request rancher#4614 from westlywright/2.5.bug.gke.labels.…

…sync

[2.5.x] GKE Sync Labels Bug

Merge pull request rancher#4604 from westlywright/2.5.bug.eks.gke.par…

…tial.update

[2.5.x] V2 Clusters Changed Deltas

Merge pull request rancher#4602 from westlywright/2.5.bug.imported.re…

…lease.channels

[2.5.x] GKE V2 Updates

Merge pull request rancher#4590 from westlywright/2.5.bug.imported.re…

…lease.channels

[2.5.x] GKE Imported Cluster Lookup