Merge pull request rancher#35918 from brendarearden/v2.6.3-rc9

[v2.6.3] - Update tags for v2.6.3-rc11 (final rc)

Merge pull request rancher#35918 from brendarearden/v2.6.3-rc9

[v2.6.3] - Update tags for v2.6.3-rc11 (final rc)

Merge pull request rancher#35926 from brendarearden/v2.6.3-rc10

Update tags for v2.6.3-rc10

Merge pull request rancher#35923 from thedadams/set-registry-k3s-clus…

…ters

Set system-default-registry for K3S clusters

Merge pull request rancher#35924 from brendarearden/v2.6.3-rc8

Update tags for v2.6.3-rc8

Merge pull request rancher#35918 from brendarearden/v2.6.3-rc9

[v2.6.3] - Update tags for v2.6.3-rc11 (final rc)

Merge pull request rancher#35883 from brendarearden/v2.6.3-rc7

Add tags for v2.6.3-rc7

Merge pull request rancher#35874 from ryansann/webhook-ver

Update webhook version

Merge pull request rancher#35863 from brendarearden/v2.6.3-rc5

Add tags for v2.6.3 rc5

Merge pull request rancher#35755 from brendarearden/v2.6.3-rc4

Add tags for v2.6.3 rc4