Suspension groan (with recording)

[Skelshy]

This has been going on for a while. It was less noticeable when I bought the car in November, maybe due to the lower temps

https://recorder.google.com/4a913804-2451-496c-b905-344c52232db0

It's actually much more present than the recording makes it sound like.

What do I need to get fixed?

Thanks
Martin

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