merge queue: embarking unstable (3903e1c) and #8666 together #17903

Job	Run time
dockerfile-ubuntu	8m 24s
doppelganger-protection-failure-test	6m 53s
run-local-testnet	26m 22s
doppelganger-protection-success-test	11m 47s
genesis-sync-test-fulu-120s	4m 17s
genesis-sync-test-electra-120s	4m 28s
genesis-sync-test-electra-300s	7m 15s
genesis-sync-test-fulu-300s	7m 37s
checkpoint-sync-test-${{ matrix.network }}	-1s
local-testnet-success	8s
	1h 17m 10s

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