Update / Align to the current Security Markdown File

[FaGru3n]

Hi @nicoprow found an outdated securtiy file,

Old: https://github.com/eclipse-tractusx/bpdm/blob/main/SECURITY.md referencing Cat-X
New: https://github.com/catenax-ng/foss-example/blob/main/eclipse-tractusx-repositories/SECURITY.md

[FaGru3n]

Update is merged issue will be closed

additional info:
@nicoprow if you want to close the issue directly you could also use the the following cmd in your commit message:

chore(docs): update security.md
closes org/repo#issue-number

but in this case cool because we as system team can over look your changes as well. 😉