minor comment

zp-relayer/pool/FinalizerPool.ts

@@ -124,6 +124,7 @@ export class FinalizerPool extends BasePool {
       const res = await this.network.pool.call('pendingCommitment')
       return res as PendingCommitment
     } catch (e) {
+      //this corresponds to ZkBobPool: queue is empty which is not considered as error
        if ((e as any).data?.endsWith("195a6b426f62506f6f6c3a20717565756520697320656d70747900000000000000")) {
         return
        }