fix observer_builder

Author: zhangchiqing

cmd/observer/node_builder/observer_builder.go

@@ -110,7 +110,6 @@ import (
 	"github.com/onflow/flow-go/state/protocol/events/gadgets"
 	"github.com/onflow/flow-go/storage"
 	bstorage "github.com/onflow/flow-go/storage/badger"
-	"github.com/onflow/flow-go/storage/operation/badgerimpl"
 	pstorage "github.com/onflow/flow-go/storage/pebble"
 	"github.com/onflow/flow-go/storage/store"
 	"github.com/onflow/flow-go/utils/grpcutils"
@@ -1347,7 +1346,7 @@ func (builder *ObserverServiceBuilder) BuildExecutionSyncComponents() *ObserverS
 
 		builder.Module("indexed block height consumer progress", func(node *cmd.NodeConfig) error {
 			// Note: progress is stored in the MAIN db since that is where indexed execution data is stored.
-			indexedBlockHeight = store.NewConsumerProgress(badgerimpl.ToDB(builder.DB), module.ConsumeProgressExecutionDataIndexerBlockHeight)
+			indexedBlockHeight = store.NewConsumerProgress(builder.ProtocolDB, module.ConsumeProgressExecutionDataIndexerBlockHeight)
 			return nil
 		}).Module("transaction results storage", func(node *cmd.NodeConfig) error {
 			builder.lightTransactionResults = store.NewLightTransactionResults(node.Metrics.Cache, node.ProtocolDB, bstorage.DefaultCacheSize)