feat: ssh-audit & testssl integrations

[OblackatO]

There are two wonderful and well tested tools that could be added to secator:

• ssh-audit.py : SSH server & client security auditing (banner, key exchange, encryption, mac, compression, compatibility, security, etc)
• testssl : Testing TLS/SSL encryption anywhere on any port

Both tools fulfill the requirements in curated-list-of-tools.

[ocervell]

Great idea. We have a huge (and growing) list of tools to integrate (see #51) but if you want to prioritize it feel free to make a PR ! Here are some instructions to integrate a new task with secator: https://docs.freelabz.com/for-developers/writing-tasks