increase bid wall fees to 3% (#408) #343

Job	Run time
generate-verifiable-bid-wall	4m 33s
generate-verifiable-price-based-performance-package	4m 26s
generate-verifiable-conditional-vault	4m 43s
generate-verifiable-futarchy	4m 55s
generate-verifiable-launchpad-v6	5m 13s
generate-verifiable-launchpad-v7	5m 35s
	29m 25s

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