Add printing out trailer line to logs

[smirnovaae]

🎫 Ticket

https://jira.cms.gov/browse/AB2D-xxx

🛠 Changes

Added printing out last line to logs

✅ Acceptance Validation

Tested on Impl:

2024-04-24T13:22:33.290-07:00 | File trailer: TRL_BENECONFIRM202404240000000007

🔒 Security Implications

• This PR adds a new software dependency or dependencies.
• This PR modifies or invalidates one or more of our security controls.
• This PR stores or transmits data that was not stored or transmitted before.
• This PR requires additional review of its security implications for other reasons.

If any security implications apply, add Jason Ashbaugh (GitHub username: StewGoin) as a reviewer and do not merge this PR without his approval.