Use SingleAttestation for Fulu in p2p attestation map (#14809)

* Use `SingleAttestation` for Fulu in p2p attestation map.

* Fix `TestExtractDataType`.

---------

Co-authored-by: Manu NALEPA <enalepa@offchainlabs.com>

beacon-chain/p2p/types/object_mapping.go

@@ -123,7 +123,7 @@ func InitializeDataMaps() {
 			return &ethpb.SingleAttestation{}, nil
 		},
 		bytesutil.ToBytes4(params.BeaconConfig().FuluForkVersion): func() (ethpb.Att, error) {
-			return &ethpb.AttestationElectra{}, nil
+			return &ethpb.SingleAttestation{}, nil
 		},
 	}
 

beacon-chain/sync/decode_pubsub_test.go

@@ -292,7 +292,7 @@ func TestExtractDataType(t *testing.T) {
 				return wsb
 			}(),
 			wantMd:        wrapper.WrappedMetadataV1(&ethpb.MetaDataV1{}),
-			wantAtt:       &ethpb.AttestationElectra{},
+			wantAtt:       &ethpb.SingleAttestation{},
 			wantAggregate: &ethpb.SignedAggregateAttestationAndProofElectra{},
 			wantErr:       false,
 		},

changelog/radek_fulu-object-mapping.md

@@ -0,0 +1,3 @@
+### Fixed
+
+- Use `SingleAttestation` for Fulu in p2p attestation map.