fix: Private key for account 20 #1752

Job	Run time
lint	26s
assertoor	5m 24s
check_optimism_package	4m 31s
run_starlark	1m 18s
run_with_args (./.github/tests/mev.yaml)	2m 39s
run_with_args (./.github/tests/mev-mock.yaml)	1m 20s
run_with_args (./.github/tests/mix-with-tools.yaml)	5m 26s
run_with_args (./.github/tests/mix-persistence.yaml)	2m 51s
run_with_args (./.github/tests/mix-public.yaml)	3m 35s
run_with_args (./.github/tests/minimal.yaml)	3m 0s
run_with_args (./network_params.yaml)	1m 6s
	31m 36s

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