Update PrysmBeaconService.int.js #1355

Job	Run time
setup	1m 29s
test NodeConnection.int.js	6m 50s
test BesuService.int.js	7m 13s
test GethService.int.js	8m 6s
test ErigonService.int.js	6m 32s
test NethermindService.int.js	6m 55s
test FlashbotsMevBoostService.int.js	6m 55s
test PrysmBeaconService.int.js	10m 50s
test LighthouseBeaconService.int.js	13m 42s
test TekuBeaconService.int.js	8m 12s
test LodestarBeaconService.int.js	14m 32s
test NimbusBeaconService.int.js	9m 13s
	1h 40m 29s

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