Auto merge of #125443 - nnethercote:rustfmt-use-decls, r=lcnr,cuviper,GuillaumeGomez

rustfmt `use` declarations

This PR implements https://github.com/rust-lang/compiler-team/issues/750, which changes how `use` declarations are formatted by adding these options to `rustfmt.toml`:
```
group_imports = "StdExternalCrate"
imports_granularity = "Module"
```

r? `@ghost`

1 files changed, 3 insertions, 4 deletions

diff --git a/compiler/rustc_errors/src/error.rs b/compiler/rustc_errors/src/error.rs
index ca818a4d832..462467d9fa0 100644
--- a/compiler/rustc_errors/src/error.rs
+++ b/compiler/rustc_errors/src/error.rs
@@ -1,11 +1,10 @@
-use rustc_error_messages::{
-    fluent_bundle::resolver::errors::{ReferenceKind, ResolverError},
-    FluentArgs, FluentError,
-};
 use std::borrow::Cow;
 use std::error::Error;
 use std::fmt;
 
+use rustc_error_messages::fluent_bundle::resolver::errors::{ReferenceKind, ResolverError};
+use rustc_error_messages::{FluentArgs, FluentError};
+
 #[derive(Debug)]
 pub enum TranslateError<'args> {
     One {