Remove versions from inventory sample (#12164)

The recommended usage of kubespray is to use the default versions.
So putting them in inventory/sample is not really very helpful, and
causes:
- churn (keeping the inventory/sample up to date)
- support issues (mismatch between defaults and sample inventory)

Remove all concrete versions from the inventory sample.

inventory/sample/group_vars/k8s_cluster/addons.yml

@@ -148,7 +148,6 @@ cert_manager_enabled: false
 metallb_enabled: false
 metallb_speaker_enabled: "{{ metallb_enabled }}"
 metallb_namespace: "metallb-system"
-# metallb_version: 0.13.9
 # metallb_protocol: "layer2"
 # metallb_port: "7472"
 # metallb_memberlist_port: "7946"
@@ -210,7 +209,6 @@ metallb_namespace: "metallb-system"
 #             - pool2
 
 argocd_enabled: false
-# argocd_version: 2.14.5
 # argocd_namespace: argocd
 # Default password:
 #   - https://argo-cd.readthedocs.io/en/stable/getting_started/#4-login-using-the-cli

inventory/sample/group_vars/k8s_cluster/k8s-cluster.yml

@@ -16,9 +16,6 @@ kube_token_dir: "{{ kube_config_dir }}/tokens"
 
 kube_api_anonymous_auth: true
 
-## Change this to use another Kubernetes version, e.g. a current beta release
-kube_version: 1.32.4
-
 # Where the binaries will be downloaded.
 # Note: ensure that you've enough disk space (about 1G)
 local_release_dir: "/tmp/releases"

inventory/sample/group_vars/k8s_cluster/k8s-net-cilium.yml

@@ -1,6 +1,4 @@
 ---
-# cilium_version: "1.15.9"
-
 # Log-level
 # cilium_debug: false
 

inventory/sample/group_vars/k8s_cluster/k8s-net-custom-cni.yml

@@ -45,7 +45,7 @@
 # custom_cni_chart_repository_name: cilium
 # custom_cni_chart_repository_url: https://helm.cilium.io
 # custom_cni_chart_ref: cilium/cilium
-# custom_cni_chart_version: 1.14.3
+# custom_cni_chart_version: <chart version> (e.g.: 1.14.3)
 # custom_cni_chart_values:
 #   cluster:
 #     name: "cilium-demo"

inventory/sample/group_vars/k8s_cluster/k8s-net-kube-router.yml

@@ -1,11 +1,5 @@
 # See roles/network_plugin/kube-router/defaults/main.yml
 
-# Kube router version
-# Default to v2
-# kube_router_version: "2.0.0"
-# Uncomment to use v1 (Deprecated)
-# kube_router_version: "1.6.0"
-
 # Enables Pod Networking -- Advertises and learns the routes to Pods via iBGP
 # kube_router_run_router: true