Bind correct object to method handler in DTL (#1168)

* fix: bind correct object to method handler

* build: add changeset

.changeset/spotty-garlics-kick.md

+---
+'@eth-optimism/data-transport-layer': patch
+---
+
+Attach correct TransportDB object to method handler

packages/data-transport-layer/src/services/l1-ingestion/service.ts

@@ -246,9 +246,9 @@ export class L1IngestionService extends BaseService<L1IngestionServiceOptions> {
 
           // Different functions for getting the last good element depending on the event type.
           const handlers = {
-            SequencerBatchAppended: this.state.db.getLatestTransactionBatch.bind(this),
-            StateBatchAppended: this.state.db.getLatestStateRootBatch.bind(this),
-            TransactionEnqueued: this.state.db.getLatestEnqueue.bind(this),
+            SequencerBatchAppended: this.state.db.getLatestTransactionBatch.bind(this.state.db),
+            StateBatchAppended: this.state.db.getLatestStateRootBatch.bind(this.state.db),
+            TransactionEnqueued: this.state.db.getLatestEnqueue.bind(this.state.db),
           }
 
           // Find the last good element and reset the highest synced L1 block to go back to the