[Feedback]: page mentions `linux-modules-extra-$(uname -r)`, but this does not exist anymore

### Page URL

https://ubuntu.com/server/docs/how-to/high-availability/install-drbd/

### Select an option

- [ ] I found what I was looking for
- [ ] I couldn't find what I was looking for
- [x] I found the information, but it was incorrect
- [ ] I found the information, but it was incomplete
- [ ] I found the information, but it was confusing
- [ ] I encountered a technical issue (e.g., broken link, image not loading)

### Issue Description

There is a note on the page

> If you are using the virtual kernel as part of a virtual machine you will need to manually compile the drbd module. It may be easier to install the linux-modules-extra-$(uname -r) package inside the virtual machine.

However, [there is no more `linux-modules-extra` as of Questing.](https://discourse.ubuntu.com/t/kernel-development-release-cadence-and-deprecation-of-linux-modules-extra/65176). We should update the page to make this clear.