Add shop_webhook custom post type

Part of #5564

includes/class-wc-post-types.php

@@ -367,6 +367,27 @@ class WC_Post_types {
 				)
 			);
 		}
+
+		register_post_type( 'shop_webhook',
+			apply_filters( 'woocommerce_register_post_type_shop_webhook',
+				array(
+					'label' => __( 'Webhooks', 'woocommerce' ),
+					'public'              => false,
+					'show_ui'             => false,
+					'capability_type'     => 'shop_webhook',
+					'map_meta_cap'        => true,
+					'publicly_queryable'  => false,
+					'exclude_from_search' => true,
+					'show_in_menu'        => false,
+					'hierarchical'        => false,
+					'rewrite'             => false,
+					'query_var'           => false,
+					'supports'            => false,
+					'show_in_nav_menus'   => false,
+					'show_in_admin_bar'   => false,
+				)
+			)
+		);
 	}
 
 	/**