pallet-bounties: Fix benchmarks for 0 ED #16920

Job	Run time
check-dependency-rules	10s
check-readme	2m 59s
check-fail-ci	11s
check-markdown	15s
check-workspace	12s
preflight / preflight	39s
preflight / ci-versions	57s
check-rust-feature-propagation	1m 57s
check-toml-format	1m 2s
fmt	1m 15s
check-umbrella	2m 22s
test-rust-features	2m 0s
All quick checks passed	1s
	14m 0s

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