Investigate configurating spring boot trusted proxy setttings

[netomi]

Documentation:

https://docs.spring.io/spring-boot/3.5/how-to/webserver.html#howto.webserver.use-behind-a-proxy-server

Currently we use custom configuration to e.g. get IP addresses of the original request.

We should look into how existing spring boot functionality could replace that and make it more secure (trusted proxies).