Confirm if settings are applicable to C8 Optimize

[akeller]

• SPRING_SECURITY_OAUTH2_RESOURCESERVER_JWT_JWK_SET_URI Complete URI to get public keys for JWT validation, e.g. https://weblogin.cloud.company.com/.well-known/jwks.json. For more details see public API authentication.
• OPTIMIZE_API_ACCESS_TOKEN secret static shared token to be provided to the secured REST API on access in the authorization header. Will
  be ignored if SPRING_SECURITY_OAUTH2_RESOURCESERVER_JWT_JWK_SET_URI is also set. For more details see public API
  authentication.

The above content was removed via #4785 to remove Optimize C7 content from docs.camunda.io, however, there was a discussion about whether this was related to C8 and/or if it was going to be impacted by the Identity changes.

We could not confirm while the PR was open.

If this does need to be added back, the change may need to be backported.