feat: add an optional password header to make authenticated rpc calls #5149

Job	Run time
E2E Admin Password / Setup and Run E2E	2m 8s
E2E Automine Stratus in-memory / Setup and Run E2E	2m 13s
E2E Automine Stratus Rocks / Setup and Run E2E	1m 56s
E2E Clock Stratus in-memory / Setup and Run E2E	3m 4s
E2E Clock Stratus Rocks / Setup and Run E2E	2m 55s
E2E External Stratus in-memory / Setup and Run E2E	2m 24s
E2E External Stratus Rocks / Setup and Run E2E	1m 58s
E2E Interval Stratus / Setup and Run E2E	2m 16s
	18m 54s

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