Metadata question

I happened to be re-implementing some acceptance tests the other day and while doing so I noticed that the signatures for the actions secret functions didn't look right. Tracking this back into the OpenAPI doc shows that the 5 functions below are tracking APIs from GHES v3.7 that are no longer documented (see #4335 for my proposed fix for this specific case).

- `ActionsService.GetEnvPublicKey`
- `ActionsService.ListEnvSecrets`
- `ActionsService.GetEnvSecret`
- `ActionsService.CreateOrUpdateEnvSecret`
- `ActionsService.DeleteEnvSecret`

Looking at the OpenAPI metadata I was expecting these endpoints to be marked as deprecated, but this doesn't appear to be the case. I can also see unused endpoints from old GHES versions still in the metadata.

My primary questions are as follows:

- Should endpoints be removed once they're no longer supported by GitHub and are no longer in use (e.g. there are some projects v1 endpoints still in there)?
- Should endpoints be marked as deprecated once they're no longer supported by GitHub (e.g. deprecated or not in supported GHES versions)?
- If the endpoints were correctly marked as deprecated would this automatically mark the functions as deprecated?
- If this is the case do we have a process for updating functions that just need to change endpoint and/or signature?

Beginne mit der Überprüfung der OpenAPI-Metadaten und der fünf in diesem Issue aufgeführten Methoden von ActionsService. Vergleiche sie anschließend mit der GHES v3.7-Dokumentation und dem vorgeschlagenen Fix in #4335. Erledigt ist die Aufgabe, wenn die Fragen zur Entfernung und Abschaffung des Endpunkts beantwortet sind und ein klarer Prozess für die Aktualisierung betroffener Funktionen dokumentiert ist.

Vom Indexierungsmodell aus dem Issue-Text verfasst.