Add health endpoint

[upkarlidder]

Is your feature request related to a problem? Please describe.
Add a health endpoint at /health that returns 200 response with the following

Describe the solution you'd like

• add a test to verify /health endpoint exists (this will fail)
• add the /health endpoint
• add a test to verify the /health endpoint returns 200 with state = {"status": "UP"} json response

Describe alternatives you've considered
N/A

Additional context
N/A

[github-actions]

👋 Hi! This issue has been marked stale due to inactivity. If no further activity occurs, it will automatically be closed in 14 days.

[github-actions]

👋 Hi! This issue has been marked stale due to inactivity. If no further activity occurs, it will automatically be closed in 14 days.