Caplin: Fixed not calling FCU due to faulty blob handling (#9779)

This is kind of a low priority issue.

We need blobs corresponding to each blocks, but before we were not
checking if we received all of them, now we ask until the request
returns the desired amount.

Author: Giulio2002

cl/phase1/stages/clstages.go

@@ -564,14 +564,23 @@ func ConsensusClStages(ctx context.Context,
 										errCh <- err
 										return
 									}
-									blobs, err := network2.RequestBlobsFrantically(ctx, cfg.rpc, ids)
-									if err != nil {
-										errCh <- err
-										return
-									}
-									if _, _, err = blob_storage.VerifyAgainstIdentifiersAndInsertIntoTheBlobStore(ctx, cfg.blobStore, ids, blobs.Responses, forkchoice.VerifyHeaderSignatureAgainstForkChoiceStoreFunction(cfg.forkChoice, cfg.beaconCfg, cfg.genesisCfg.GenesisValidatorRoot)); err != nil {
-										errCh <- err
-										return
+									var inserted uint64
+
+									for inserted != uint64(ids.Len()) {
+										select {
+										case <-ctx.Done():
+											return
+										default:
+										}
+										blobs, err := network2.RequestBlobsFrantically(ctx, cfg.rpc, ids)
+										if err != nil {
+											errCh <- err
+											return
+										}
+										if _, inserted, err = blob_storage.VerifyAgainstIdentifiersAndInsertIntoTheBlobStore(ctx, cfg.blobStore, ids, blobs.Responses, forkchoice.VerifyHeaderSignatureAgainstForkChoiceStoreFunction(cfg.forkChoice, cfg.beaconCfg, cfg.genesisCfg.GenesisValidatorRoot)); err != nil {
+											errCh <- err
+											return
+										}
 									}
 
 									select {