[Abuse SSL] Add info about loading variable

[Brazilianian]

Prerequisites

• I read the Deployment and Setup section of the OpenCTI documentation as well as the Troubleshooting page and didn't find anything relevant to my problem.
• I went through old GitHub issues and couldn't find anything relevant
• I googled the issue and didn't find anything relevant

Description

I looked at abuse-ssl connector and found out that there is no any information about update_existing_data variable in README.md, config.yml.sample and docker-compose.yml.

connectors/external-import/abuse-ssl/src/abuse-ssl.py

Line 50 in 37e784f

self.update_existing_data = get_config_variable(

It would be really great to add additional information in sample files.

Environment

1. OS (where OpenCTI server runs): Ubuntu 22.04
2. OpenCTI version: OpenCTI 6.4.5
3. OpenCTI client: python
4. Other environment details: -

Reproducible Steps

Steps to create the smallest reproducible scenario:

1. Open open-ssl.py file, in __init__ function you can see loading update_existing_data variable
2. Look at the file README.MD, config.yml.sample, docker-compose.yml. There is no any information

Additional information

I also can create Pull Request to fix it.

[romain-filigran]

Hi @Brazilianian. This configuration variable is obsolete and no longer has any effect. It should be removed from the code to avoid confusion.