Update Earliest available slot when pruning (#15694)

* Update Earliest available slot when pruning

* bazel run //:gazelle -- fix

* custodyUpdater interface to avoid import cycle

* bazel run //:gazelle -- fix

* simplify test

* separation of concerns

* debug log for updating eas

* UpdateEarliestAvailableSlot function in CustodyManager

* fix test

* UpdateEarliestAvailableSlot function for FakeP2P

* lint

* UpdateEarliestAvailableSlot instead of UpdateCustodyInfo + check for Fulu

* fix test and lint

* bugfix: enforce minimum retention period in pruner

* remove MinEpochsForBlockRequests function and use from config

* remove modifying earliest_available_slot after data column pruning

* correct earliestAvailableSlot validation: allow backfill decrease but prevent increase within MIN_EPOCHS_FOR_BLOCK_REQUESTS

* lint

* bazel run //:gazelle -- fix

* lint and remove unwanted debug logs

* Return a wrapped error, and let the caller decide what to do

* fix tests because updateEarliestSlot returns error now

* avoid re-doing computation in the test function

* lint and correct changelog

* custody updater should be a mandatory part of the pruner service

* ensure never increase eas if we are in the block requests window

* slot level granularity edge case

* update the value stored in the DB

* log tidy up

* use errNoCustodyInfo

* allow earliestAvailableSlot edit when custodyGroupCount doesnt change

* undo the minimal config change

* add context to CustodyGroupCount after merging from develop

* cosmetic change

* shift responsibility from caller to callee, protection for updateEarliestSlot. UpdateEarliestAvailableSlot returns cgc

* allow increase in earliestAvailableSlot only when custodyGroupCount also increases

* remove CustodyGroupCount as it is no longer needed as UpdateEarliestAvailableSlot returns cgc now

* proper place for log and name refactor

* test for Nil custody info

* allow decreasing earliest slot in DB (just like in memory)

* invert if statement to make more readable

* UpdateEarliestAvailableSlot for DB (equivalent of p2p's UpdateEarliestAvailableSlot) & undo changes made to UpdateCustodyInfo

* in UpdateEarliestAvailableSlot, no need to return unused values

* no need to log stored group count

* log.WithField instead of log.WithFields

beacon-chain/node/node.go

@@ -1108,6 +1108,7 @@ func (b *BeaconNode) registerPrunerService(cliCtx *cli.Context) error {
 		genesis,
 		initSyncWaiter(cliCtx.Context, b.initialSyncComplete),
 		backfillService.WaitForCompletion,
+		b.fetchP2P(),
 		opts...,
 	)
 	if err != nil {