Run rustfmt on nightly to clean up erroneous comments (#5106)

## Summary

This PR runs `rustfmt` with a few nightly options as a one-time fix to
catch some malformatted comments. I ended up just running with:

```toml
condense_wildcard_suffixes = true
edition = "2021"
max_width = 100
normalize_comments = true
normalize_doc_attributes = true
reorder_impl_items = true
unstable_features = true
use_field_init_shorthand = true
```

Since these all seem like reasonable things to fix, so may as well while
I'm here.

crates/ruff_python_formatter/src/statement/mod.rs

@@ -70,6 +70,7 @@ impl FormatRule<Stmt, PyFormatContext<'_>> for FormatStmt {
 
 impl<'ast> AsFormat<PyFormatContext<'ast>> for Stmt {
     type Format<'a> = FormatRefWithRule<'a, Stmt, FormatStmt, PyFormatContext<'ast>>;
+
     fn format(&self) -> Self::Format<'_> {
         FormatRefWithRule::new(self, FormatStmt::default())
     }
@@ -77,6 +78,7 @@ impl<'ast> AsFormat<PyFormatContext<'ast>> for Stmt {
 
 impl<'ast> IntoFormat<PyFormatContext<'ast>> for Stmt {
     type Format = FormatOwnedWithRule<Stmt, FormatStmt, PyFormatContext<'ast>>;
+
     fn into_format(self) -> Self::Format {
         FormatOwnedWithRule::new(self, FormatStmt::default())
     }

crates/ruff_python_formatter/src/statement/stmt_assign.rs

@@ -7,7 +7,6 @@ use ruff_formatter::{write, Buffer, Format, FormatResult};
 use ruff_python_ast::prelude::Expr;
 use rustpython_parser::ast::StmtAssign;
 
-//
 // Note: This currently does wrap but not the black way so the types below likely need to be
 // replaced entirely
 //

crates/ruff_python_formatter/src/statement/suite.rs

@@ -178,6 +178,7 @@ impl<'ast> AsFormat<PyFormatContext<'ast>> for Suite {
 
 impl<'ast> IntoFormat<PyFormatContext<'ast>> for Suite {
     type Format = FormatOwnedWithRule<Suite, FormatSuite, PyFormatContext<'ast>>;
+
     fn into_format(self) -> Self::Format {
         FormatOwnedWithRule::new(self, FormatSuite::default())
     }