Bump undici from 5.26.3 to 5.28.3 in /integration_tests/contracts #5577

Job	Run time
integration_tests (unmarked)	6m 55s
integration_tests (ibc)	6m 42s
integration_tests (ibc_rly_evm)	4m 2s
integration_tests (ibc_rly_gas)	4m 8s
integration_tests (ibc_timeout)	3m 43s
integration_tests (ibc_update_client)	4m 42s
integration_tests (ica)	6m 8s
integration_tests (gov)	4m 3s
integration_tests (upgrade)	6m 0s
integration_tests (slow)	6m 13s
integration_tests (gas)	4m 55s
upload-cache	0s
	57m 31s

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