chore(deps): bump actions/download-artifact from 3 to 4.1.7 in /.github/workflows #565

Job	Run time
set-image	1s
Check documentation	1m 28s
Clippy	1m 52s
Build polkadot-staking-miner binary	2m 6s
Check code using cargo-hack	1m 30s
Check formatting	1m 0s
Run tests	5m 10s
Test Docker image build	5s
Build and publish Docker image	0s
	13m 12s

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