fix(k8s): add missing placement group ID (scaleway#268)

Author: Sh4d1

scaleway/resource_k8s_cluster_beta.go

@@ -117,6 +117,13 @@ func resourceScalewayK8SClusterBeta() *schema.Resource {
 							Default:     nil,
 							Description: "Maximum size of the default pool",
 						},
+						"placement_group_id": {
+							Type:        schema.TypeString,
+							Optional:    true,
+							ForceNew:    true,
+							Default:     nil,
+							Description: "ID of the placement group for the default pool",
+						},
 						"container_runtime": {
 							Type:        schema.TypeString,
 							Optional:    true,