feat(data): add a default 10s timeout when fetching data from gateway…

…s PE-4212

The Axios default is no timeout. This is especially bad when fetching data for
bundle processing since it can block the unbundling queue. This adds an initially
conservative 10 second timeout for fetching data from other gateways.

src/data/gateway-data-source.ts

@@ -20,20 +20,25 @@ import winston from 'winston';
 
 import { ContiguousData, ContiguousDataSource } from '../types.js';
 
+const DEFAULT_REQUEST_TIMEOUT_MS = 10000;
+
 export class GatewayDataSource implements ContiguousDataSource {
   private log: winston.Logger;
   private trustedGatewayAxios;
 
   constructor({
     log,
     trustedGatewayUrl,
+    requestTimeoutMs = DEFAULT_REQUEST_TIMEOUT_MS,
   }: {
     log: winston.Logger;
     trustedGatewayUrl: string;
+    requestTimeoutMs?: number;
   }) {
     this.log = log.child({ class: 'GatewayDataSource' });
     this.trustedGatewayAxios = axios.create({
       baseURL: trustedGatewayUrl,
+      timeout: requestTimeoutMs,
     });
   }