/properties always returns json format

[tloubrieu-jpl]

Checked for duplicates

Yes - I've already checked

🐛 Describe the bug

When I did request:

'''
curl -X 'GET'
'http://localhost:8081/properties'
-H 'accept: application/csv'
'''

I am getting a json response.

Whatever the Accept header value, we are getting a json response.

🕵️ Expected behavior

I expected either to get a response in the requested format or an unsupported format error (406)

📜 To Reproduce

1. Deploy from main branch
2. run curl request above

🖥 Environment Info

Tested with a server deployed on my latptop, build from the source.

📚 Version of Software Used

Tested with the latest main branch (v1.3.0-SNAPSHOT)

🩺 Test Data / Additional context

No response

🦄 Related requirements

🦄 #xyz

⚙️ Engineering Details

No response

[tloubrieu-jpl]

I believe this ticket is linked to management of the response format in the openapi specification and another consequence is the following bug on the python api client NASA-PDS/pds-api-client#29