fix(fast-inbox): annotate the rerun checkpoint job return type (A-1427)

Destructuring the sub-tree proof bundle left the helper's inferred return type
unnameable outside the package, so declare it explicitly.

Author: spalladino

yarn-project/prover-node/src/actions/rerun-epoch-proving-job.ts

@@ -6,7 +6,7 @@ import { DateProvider } from '@aztec/foundation/timer';
 import { type ProverClientConfig, createProverClient } from '@aztec/prover-client';
 import { ProverBrokerConfig, createAndStartProvingBroker } from '@aztec/prover-client/broker';
 import { getLastSiblingPath } from '@aztec/prover-client/helpers';
-import { ChonkCache } from '@aztec/prover-client/orchestrator';
+import { type CheckpointSubTreeProofs, ChonkCache } from '@aztec/prover-client/orchestrator';
 import { AvmSimulatorPool, PublicProcessorFactory } from '@aztec/simulator/server';
 import type { L2Block } from '@aztec/stdlib/block';
 import { getEpochAtSlot, getSlotRangeForEpoch } from '@aztec/stdlib/epoch-helpers';
@@ -86,7 +86,7 @@ export async function rerunCheckpointProvingJob(
   log: Logger,
   config: RerunConfig,
   genesis?: GenesisData,
-) {
+): Promise<CheckpointSubTreeProofs['blockProofOutputs']> {
   await using ctx = await createRerunContext(localPath, log, config, genesis);
   const { jobData } = ctx;
   const checkpointNumber = jobData.checkpoints[0].number;