[api] Murano API returns the blank list instead of error(404 or 403)

[Sergey Murashov]

When user attempts to get the non-deployed application without the session-id Murano API returns the empty list instead of error response.

Steps to reproduce:
1. Install murano from master branch
2. Create environment
3. Create session
4. Create service
5. Send GET request on http://172.18.124.228:8082/v1/environments/<environment_id>/services/<service-id> without X-Configuration-Session: <session_id> in Headers

Actual result:
Murano API returns empty list, but should return 403 status code

[Timur Nurlygayanov (tnurlygayanov)]

Sergey, need to verify that it is bug and if it is, need to fix :)

[Serg Melikyan (smelikyan)]

2. Create environment
    - Created empty environment without any applications
5. Send .. without X-Configuration-Session
    - Without X-Configuration-Session requesting list of apps from actual env state, which is empty list

[Ekaterina Chernova (efedorova)]

Expected behavior, since without session-id list of deployed applications is provided. And if there are not deployed apps - empty list will be returned