[Malpedia] Update connector to be "manager_supported"

[Powlinett]

Proposed changes

• automated code changes:
  • add settings.py
  • update connector.py
  • update main.py or __main__.py
  • add unit tests

Related issues

• #4857

Checklist

• [x] I consider the submitted work as finished
• [x] I have signed my commits using GPG key.
• [ ] I tested the code for its functionality using different use cases
• [ ] I added/update the relevant documentation (either on github or on notion)
• [ ] Where necessary I refactored code to improve the overall quality

Further comments

The code needs to be reviewed by two people: one must fix any issue, the other one review the final commits.