[Trufflehog Update] Add Trufflehog secret scanning workflow

[matbmoser]

Description

The GitGuardian secret scanning tool licence is now expired, therefore in order to maintain the Security of the Tractus-X Repositories there will be inforced the TRG-8.03 for all Tractus-X repos.

Main ticket

https://github.com/eclipse-tractusx/sig-security/issues/86

What needs to be done?

• [ ] Add the Trufflehog workflow like described in TRG-8.03 to the /.github/workflows folder
• [ ] Remove all references to GitGuardian from documentation
• [ ] Create a PR and Merge it to main
• [ ] As committer: revise if any secrets were found in the scan (in security tab)
• [ ] Close this ticket

Thank you very much for doing the update! 🚀 If there is any question, please let us know,

Your Tractus-X Project Leads 💯

[matbmoser]

Works!

[matbmoser]

Already solved, this was just a test.