Downgrade duplication log of attestation to Debug #17291

Job	Run time
Check for 'skip-ci' label	1s
check-code	10m 13s
check-msrv	5m 1s
target-branch-check	1s
release-tests-ubuntu	18m 11s
op-pool-tests	12m 25s
beacon-chain-tests	15m 49s
debug-tests-ubuntu	5m 13s
network-tests	8m 52s
release-tests-windows	26m 52s
slasher-tests	1m 38s
state-transition-vectors-ubuntu	2m 25s
basic-simulator-ubuntu	14m 20s
cargo-udeps	7m 17s
cli-check	8m 19s
compile-with-beta-compiler	14m 31s
ef-tests-ubuntu	12m 24s
execution-engine-integration-ubuntu	11m 46s
fallback-simulator-ubuntu	12m 49s
test-suite-success	9s
	3h 8m 16s

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