Fix IER12 bug - Allow zero grants

[JasonCTang]

Describe the Bug
IER12 job fails if application(s) do not contain at least 1 grant.

Expected Behaviour
IER12 job should be able to pick up an application and create a record in the file even if there are no grants.

Actual Behaviour
When running the IER12 job with applications that contain no grants, the job fails and fails with the following error:
TypeError: Reduce of empty array with no initial value
at Array.reduce ()
at IER12IntegrationService.getSumOfAwards (/opt/app-root/src/dist/apps/queue-consumers/main.js:14723:14)
at /opt/app-root/src/dist/apps/queue-consumers/main.js:14599:43
at Array.map ()
at IER12IntegrationService.createIER12FileContent (/opt/app-root/src/dist/apps/queue-consumers/main.js:14556:42)
at IER12ProcessingService.uploadIER12Content (/opt/app-root/src/dist/apps/queue-consumers/main.js:14354:62)
at IER12ProcessingService.processIER12File (/opt/app-root/src/dist/apps/queue-consumers/main.js:14342:52)
at runMicrotasks ()
at processTicksAndRejections (node:internal/process/task_queues:96:5)
at async IER12IntegrationScheduler.processIER12File (/opt/app-root/src/dist/apps/queue-consumers/main.js:13993:31)

** Steps To Reproduce**
Steps to reproduce the behaviour:

1. Create application with no grant award types. (Use income over $100,000 and no disability for single independent student) and submitted for any non BC Public institution.
2. Go to https://test-aest-sims.apps.silver.devops.gov.bc.ca/admin/queues/queue/ier12-integration?status=failed and promote the job to run.
3. View the failed tab.
4. See error

Acceptance Criteria

• Implement the code fix on reduce to have initial value
• Test the fix by submitting an application which does not produce any grant as mentioned above