feat(billing): update ListDiscount order_by to accept start_date and expiration_date (scaleway#4318)

Author: scaleway-bot

cmd/scw/testdata/test-all-usage-billing-discount-list-usage.golden

@@ -6,7 +6,7 @@ USAGE:
   scw billing discount list [arg=value ...]
 
 ARGS:
-  [order-by]          Order discounts in the response by their description (creation_date_desc | creation_date_asc)
+  [order-by]          Order discounts in the response by their description (creation_date_desc | creation_date_asc | start_date_desc | start_date_asc | stop_date_desc | stop_date_asc)
   [organization-id]   ID of the organization
 
 FLAGS:

docs/commands/billing.md

@@ -83,7 +83,7 @@ scw billing discount list [arg=value ...]
 
 | Name |   | Description |
 |------|---|-------------|
-| order-by | One of: `creation_date_desc`, `creation_date_asc` | Order discounts in the response by their description |
+| order-by | One of: `creation_date_desc`, `creation_date_asc`, `start_date_desc`, `start_date_asc`, `stop_date_desc`, `stop_date_asc` | Order discounts in the response by their description |
 | organization-id |  | ID of the organization |
 
 

internal/namespaces/billing/v2beta1/billing_cli.go

@@ -390,7 +390,7 @@ func billingDiscountList() *core.Command {
 				Required:   false,
 				Deprecated: false,
 				Positional: false,
-				EnumValues: []string{"creation_date_desc", "creation_date_asc"},
+				EnumValues: []string{"creation_date_desc", "creation_date_asc", "start_date_desc", "start_date_asc", "stop_date_desc", "stop_date_asc"},
 			},
 			{
 				Name:       "organization-id",