Update .tractusx to allow API-Hub to ingest DCM KIT APIs

[ClosedSourcerer]

Description

Following https://eclipse-tractusx.github.io/docs/release/trg-1/trg-1-08/ :
Modifies .tractusx to allow API-Hub to ingest APIs so that the DCM KIT can migrate to the API-Hub
YAMLs: https://github.com/eclipse-tractusx/eclipse-tractusx.github.io/tree/main/openApi/dcm

Pre-review checks

Please ensure to do as many of the following checks as possible, before asking for committer review:

• DEPENDENCIES are up-to-date. Dash license tool. Committers can open IP issues for restricted libs.
  • This PR does not introduce new dependencies
• Copyright and license header are present on all affected files
  • As a config file https://github.com/eclipse-tractusx/eclipse-tractusx.github.io/blob/main/.tractusx does currently have neither header. I did not add a header.

[stephanbcbauer]

LGTM – my personal preference – file naming based on the kebab-principle