feat(dependencies): upgrade supported cluster components

- Bump K3s to v1.36.2+k3s1, Calico to v3.32.1, Cilium to v1.20.0,
  kube-vip to v1.2.2, kube-vip cloud provider to v0.0.12, and MetalLB to
  v0.16.0 across sample inventory, role defaults, and argument specs
- Pin the Cilium CLI with a new cilium_cli_tag (v0.19.7) instead of the
  floating stable.txt lookup
- Replace the CiliumBGPPeeringPolicy v2alpha1 BGP template with the
  v2 CiliumBGPClusterConfig, CiliumBGPPeerConfig, CiliumBGPAdvertisement,
  and CiliumLoadBalancerIPPool resource set
- Move Cilium load balancer Helm keys from bpf.loadBalancer to the valid
  top-level loadBalancer path
- Add preflight schema validation and remove the deprecated policy after
  the v2 objects are accepted
- Wait for cilium status after installation
- Pin kube-vip RBAC in a repository template instead of fetching a
  mutable URL, and include EndpointSlice permissions
- Fix the kube-vip bgppeers format to address:ASN comma-separated peers
- Fail clearly when the MetalLB speaker tag replacement does not apply
- Drop the obsolete MetalLB webhook service name version branch

roles/k3s_server_post/meta/main.yml

@@ -43,7 +43,7 @@ argument_specs:
 
       calico_tag:
         description: Calico version tag
-        default: v3.27.2
+        default: v3.32.1
 
       cilium_bgp:
         description:
@@ -99,6 +99,14 @@ argument_specs:
           - native
           - routed
 
+      cilium_tag:
+        description: Cilium version tag
+        default: v1.20.0
+
+      cilium_cli_tag:
+        description: Cilium CLI version tag
+        default: v0.19.7
+
       cluster_cidr:
         description: Inner-cluster IP range
         default: 10.52.0.0/16
@@ -123,7 +131,7 @@ argument_specs:
 
       metal_lb_available_timeout:
         description: Wait for MetalLB resources
-        default: 240s
+        default: 240s6.0
 
       metal_lb_ip_range:
         description: MetalLB ip range for load balancer