fix(dashboard): variant update success toast #31358

Job	Run time
setup	2m 23s
integration-tests-packages	12m 42s
Shard (0) HTTP Integration Tests	9m 22s
Shard (1) HTTP Integration Tests	7m 17s
Shard (0) Unit Tests	7m 38s
Shard (0) Module Integration Tests	9m 7s
Shard (1) Unit Tests	4m 41s
Shard (1) Module Integration Tests	7m 53s
unit-tests	1s
integration-tests-modules	1s
integration-tests-http	1s
	1h 1m 6s

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