Fix HeadersToKeep and MaxBridgedAuthorities in Millau benchmarks#1851

svyatonik merged 3 commits intomasterparitytech/parity-bridges-common:masterfrom

move-const-hack-from-runtime-level-to-pallet-levelparitytech/parity-bridges-common:move-const-hack-from-runtime-level-to-pallet-levelCopy head branch name to clipboard