SMTP Notification is broken

[sapiderman]

Describe the bug

Notification using SMTP fails to send

To Reproduce
Steps to reproduce the behavior:

1. Setup an SMTP notificaiton channel, using config.yaml:

probes:  

  - id: 'http-1'
    name: 'status-401-test'
    requests:
      - url: https://httpbin.org/status/401
        method: PATCH
    alerts:
      - assertion: response.status < 200 or response.status > 308
        message: HTTP Status is not 200
      - assertion: response.time > 2000
        message: Too sloow
        
notifications:
  - id: smtp-maitrap
    type: smtp
    data:
      recipients: ['[email protected]']
      hostname: smtp.mailtrap.io
      port: 2525
      username: 'user'
      password: 'password'

2. To start type: 'npm start -- -c config.yaml'
3. Check smtp inbox for notifications

Expected behavior
Expect notifications from SMTP channel to be received.

Screenshots

Desktop (please complete the following information):

• OS: Ubuntu 24.04 LTS on WSL, Windows 11
• Monika Version: main branch (this test ran on commit id: ffc8e9b9619205fc4e164fe9586fb5f05e27d039)