feat: Make the cluster name configurable (#1379)

config.sample.yaml

@@ -10,6 +10,9 @@ bootstrap_timezone: ""
 # (Required) Distribution can either be k3s or talos
 bootstrap_distribution: k3s
 
+# (Optional) Cluster name; affects Cilium and Talos
+bootstrap_cluster_name: ""
+
 # (Required: Talos) Talos Specific Options
 bootstrap_talos:
   # (Required: Talos) If you need any additional System Extensions, and/or add kernel arguments generate a schematic ID.