chore: use rustfmt imports_granularity option (#17421)

Closes https://github.com/denoland/deno/issues/2699
Closes https://github.com/denoland/deno/issues/2347

Uses unstable rustfmt features. Since dprint invokes `rustfmt` we do not
need to switch the cargo toolchain to nightly. Do we care about
formatting stability of our codebase across Rust versions? (I don't)

1 files changed, 3 insertions, 1 deletions

diff --git a/core/extensions.rs b/core/extensions.rs
index 437621c0e..2cb16b125 100644
--- a/core/extensions.rs
+++ b/core/extensions.rs
@@ -1,7 +1,9 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 use crate::OpState;
 use anyhow::Error;
-use std::{cell::RefCell, rc::Rc, task::Context};
+use std::cell::RefCell;
+use std::rc::Rc;
+use std::task::Context;
 use v8::fast_api::FastFunction;
 
 pub type SourcePair = (&'static str, &'static str);