[Scala 3] Inferred types are not backquoted

[tgodzik]

Describe the bug

This was fixed for Scala 2 in https://github.com/scalameta/metals/pull/3829 using backported code from scalafix.

Expected behavior

Types should be backquoted when needed

Operating system

Linux

Editor/Extension

VS Code

Version of Metals

v0.11.2

Extra context or search terms

backquotes types infer