Return 404 for non /version paths on MQTT adapter

[dborovcanin]

BUG REPORT

1. What were you trying to achieve?
   Get version endpoint with misspelled /verision path.

2. What are the expected results?
   Status code 404 Not Found.

3. What are the received results?
   Status code 204 No Content.

4. What are the steps to reproduce the issue?
   Send an HTTP request to MQTT service path other than /version

5. In what environment did you encounter the issue?
   I'm running latest docker composition.

6. Additional information you deem important:
   This does not affect service functionality (therefore this is the low priority issue), but it is not consistent with other services.