feat: configure Blockscout to index from shadowfork block height #2871

Job	Run time
run_starlark	1m 25s
run_with_args (./.github/tests/mix-with-tools.yaml)	3m 47s
run_with_args (./.github/tests/mix-persistence.yaml)	2m 48s
assertoor	6m 35s
run_with_args (./.github/tests/mev.yaml)	1m 44s
run_with_args (./.github/tests/mix-public.yaml)	3m 32s
run_with_args (./.github/tests/mev-mock.yaml)	1m 27s
run_with_args (./.github/tests/minimal.yaml)	1m 57s
lint	33s
run_with_args (./network_params.yaml)	56s
	24m 44s

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