feat(edgestack/async): add Rollbackto field in stackPayload [EE-5684] (#9238)

api/edge/edge.go

@@ -25,6 +25,8 @@ type (
 		Namespace string
 		// Version of the stack file
 		Version int
+		// RollbackTo specifies the stack file version to rollback to (only support to rollback to the last version currently)
+		RollbackTo *int
 
 		// RegistryCredentials holds the credentials for a Docker registry.
 		// Used only for EE

api/portainer.go

@@ -364,6 +364,8 @@ type (
 		Time  int64
 		Type  EdgeStackStatusType
 		Error string
+		// EE only feature
+		RollbackTo *int
 	}
 
 	//EdgeStackStatusType represents an edge stack status type