[terraform] Use JSON logs in Blob Cleanup task

Summary: We have separate task definition for blob cleanup. Now, when Blob Service supports JSON logs, we can enable them for this task too

Test Plan: terraform plan. I'll check logs format after this is landed by browsing [[ https://us-east-2.console.aws.amazon.com/cloudwatch/home?region=us-east-2#logsV2:log-groups/log-group/$252Fecs$252Fblob-cleanup | the /ecs/blob-cleanup ]] log group.

Reviewers: will

Reviewed By: will

Subscribers: ashoat, tomek

Differential Revision: https://phab.comm.dev/D13444

services/terraform/remote/aws_cloudwatch_alarms.tf

@@ -135,7 +135,6 @@ resource "aws_cloudwatch_log_group" "ecs_task_stop" {
 }
 
 resource "aws_cloudwatch_event_target" "ecs_task_stop" {
-
   rule = aws_cloudwatch_event_rule.ecs_task_stop.name
   arn  = aws_cloudwatch_log_group.ecs_task_stop.arn
 }

services/terraform/remote/task_blob_cleanup.tf

@@ -20,6 +20,10 @@ resource "aws_ecs_task_definition" "blob_cleanup" {
         {
           name  = "BLOB_S3_BUCKET_NAME",
           value = local.blob_service_s3_bucket
+        },
+        {
+          name  = "COMM_SERVICES_USE_JSON_LOGS",
+          value = local.comm_services_use_json_logs
         }
       ]
       logConfiguration = {