fix: preload correct rke2 airgap images to break CNI bootstrap deadlock

New el9_8 nodes boot rke2 v1.33.11 (flannel v0.28.4 / calico v3.31.5) from
the rolling latest/1.33 repo, but the airgap preload pinned v1.33.4
(flannel v0.27.2 / calico v3.30.2), so canal's images were never on disk and
containerd fell back to the artifactapi mirror VIP, which is unreachable until
the flannel overlay it would provide is up. Classic bootstrap deadlock.

- bump pinned rke2_version 1.33.4 -> 1.33.11 so the versionlock, RPM and
  preloaded bundle all match the canal image tags the running binary requests
  (the default rke2-images bundle already contains the canal CNI images)
- wire the airgap archive source to the container_archive_source parameter
  (previously declared but unused) and refresh its default to the artifactapi
  github remote, so the pre-CNI-reachable source is hiera-overridable per node

Claude-Session: https://claude.ai/code/session_01JUoARVdmhxKQHyyyp1pxeT

modules/rke2/manifests/install.pp

@@ -27,10 +27,10 @@ class rke2::install (
     before  => Service["rke2-${node_type}"],
   }
 
-  # download required archive of containers
+  # preload the airgap bundle (has the default canal CNI images) so canal starts from disk, not the mirror VIP that needs flannel first
   archive { '/var/lib/rancher/rke2/agent/images/rke2-images.linux-amd64.tar.zst':
     ensure  => present,
-    source  => "https://artifactapi.k8s.syd1.au.unkin.net/api/v1/remote/github/rancher/rke2/releases/download/v${rke2_version}%2B${rke2_release}/rke2-images.linux-amd64.tar.zst",
+    source  => "${container_archive_source}/v${rke2_version}%2B${rke2_release}/rke2-images.linux-amd64.tar.zst",
     require => [
       Package["rke2-${node_type}"],
       File['/var/lib/rancher/rke2/agent/images'],

modules/rke2/manifests/params.pp

@@ -1,7 +1,7 @@
 # rke2 params
 class rke2::params (
   Enum['server', 'agent'] $node_type = 'agent',
-  String                  $rke2_version = '1.33.4',
+  String                  $rke2_version = '1.33.11',
   String                  $rke2_release = 'rke2r1',
   Stdlib::Absolutepath    $config_file = '/etc/rancher/rke2/config.yaml',
   Hash                    $config_hash = {},
@@ -11,7 +11,7 @@ class rke2::params (
   Boolean                 $helm_install = false,
   Hash                    $helm_repos = {},
   Array[String[1]]        $extra_config_files = [],
-  Stdlib::HTTPUrl         $container_archive_source = 'https://github.com/rancher/rke2/releases/download',
+  Stdlib::HTTPUrl         $container_archive_source = 'https://artifactapi.k8s.syd1.au.unkin.net/api/v1/remote/github/rancher/rke2/releases/download',
   Boolean                 $manage_registries = false,
   Hash                    $registries = {},
 ) {}