chore: move utils/epoch.zig → epoch.zig#322

markolazic01 wants to merge 1 commit intoChainSafe:mainChainSafe/lodestar-z:mainfrom

markolazic01:chore/move-epoch-out-of-utilsmarkolazic01/lodestar-z:chore/move-epoch-out-of-utilsCopy head branch name to clipboard