chore: adjust digest garm settings and dead letter retries

Author: capJavert

.infra/workers.ts

@@ -16,7 +16,7 @@ const digestWorkersArgsMap: Record<string, WorkerArgs> = {
     ackDeadlineSeconds: 120,
     deadLetterPolicy: {
       deadLetterTopic: `projects/${gcp.config.project}/topics/${digestDeadLetter}`,
-      maxDeliveryAttempts: 5,
+      maxDeliveryAttempts: 10,
     },
   },
   'api.personalized-digest-email-dead-letter-log': {

src/common/personalizedDigest.ts

@@ -247,8 +247,8 @@ const personalizedDigestFeedClient = new FeedClient(
         minimumRps: 1,
       },
       limits: {
-        maxRequests: 150,
-        queuedRequests: 100,
+        maxRequests: 300,
+        queuedRequests: 1000,
       },
       retryOpts: {
         maxAttempts: 0,