Add arrowParens formatter option

[SuperchupuDev]

Even though it's been said in #2465 (comment) that the prettier arrowParens option shouldn't be added to Rome because they find these options harder to motivate, I think it would be a good idea to have it.
Having no parentheses around single-argument arrow functions is much more clean and readable to some people, and it's a bit annoying that Rome doesn't currently support it and it makes migration much harder, as it requires to change the code style. I think this comment explains it well

Github Search shows that out of 46k .prettierrc files, 10.6k of them have arrowParens set to avoid, which is 23% of them using this option. It's used a lot and that's why it's important to have it in Rome

[SuperchupuDev]

Implemented in #4667 🎉