Is the 503 status code correct when the request to check permissions in CF fails

[TimHess]

Follow-up from https://github.com/SteeltoeOSS/Steeltoe/pull/1444/files#r1920383965 - double check what Spring Boot does

[bart-vmware]

@TimHess Reopening, I assume this was closed accidentally?

[TimHess]

It should stay open for a more complete mapping on our side, but 503/SERVICE_UNAVAILABLE is returned from a few paths in Spring:

• CloudFoundrySecurityInterceptor
• CloudFoundrySecurityService