Column reconstruction delay as a function of slot time

[nflaig]

The column reconstructions delay ms constants should be based on slot time

lodestar/packages/beacon-node/src/chain/ColumnReconstructionTracker.ts

Lines 7 to 16 in 88fbac9

	/**
	* Minimum time to wait before attempting reconstruction
	*/
	const RECONSTRUCTION_DELAY_MIN_MS = 800;
	/**
	* Maximum time to wait before attempting reconstruction
	*/
	const RECONSTRUCTION_DELAY_MAX_MS = 1200;

This is relevant for gnosis chain, devnet testing and will make it easier to reduce the slot duration in future forks.