[Website]: What are the actual OSes supported by EDOT Collector

[lucabelluccini]

Type of issue

None

What documentation page is affected

https://www.elastic.co/docs/reference/opentelemetry/compatibility/collectors

What happened?

The current page lists the supported architectures by EDOT but not the actual list of OSes on which we tested EDOT Collector and support it.
We should have something similar to https://www.elastic.co/support/matrix#matrix_os:~:text=the%20platform%20vendor.-,Elastic%20Agent,-Last%20updated%3A%202025

Additional info

Needs input by PM and Engineering