Fix comment formatting for yielded tuples (#6603)

## Summary
Closes https://github.com/astral-sh/ruff/issues/6384, although I think
the issue was fixed already on main, for the most part.

The linked issue is around formatting expressions like:

```python
def test():
    (
        yield 
        #comment 1
        * # comment 2
        # comment 3
        test # comment 4
    )

```

On main, prior to this PR, we now format like:

```python
def test():
    (
        yield (
            # comment 1
            # comment 2
            # comment 3
            *test
        )  # comment 4
    )
```

Which strikes me as reasonable. (We can't test this, since it's a syntax
error after for our parser, despite being a syntax error in both cases
from CPython's perspective.)

Meanwhile, Black does:

```python
def test():
    (
        yield
        # comment 1
        *  # comment 2
        # comment 3
        test  # comment 4
    )
```

So our formatting differs in that we move comments between the star and
the expression above the star.

As of this PR, we also support formatting this input, which is valid:

```python
def test():
    (
        yield 
        #comment 1
        * # comment 2
        # comment 3
        test, # comment 4
        1
    )
```

Like:

```python
def test():
    (
        yield (
            # comment 1
            (
                # comment 2
                # comment 3
                *test,  # comment 4
                1,
            )
        )
    )
```

There were two fixes here: (1) marking starred comments as dangling and
formatting them properly; and (2) supporting parenthesized comments for
tuples that don't contain their own parentheses, as is often the case
for yielded tuples (previously, we hit a debug assert).

Note that this diff

## Test Plan
cargo test

crates/ruff_python_formatter/src/expression/expr_starred.rs

@@ -1,6 +1,6 @@
 use ruff_python_ast::ExprStarred;
 
-use crate::comments::SourceComment;
+use crate::comments::{dangling_comments, SourceComment};
 use ruff_formatter::write;
 use ruff_python_ast::node::AnyNodeRef;
 
@@ -20,7 +20,10 @@ impl FormatNodeRule<ExprStarred> for FormatExprStarred {
             ctx: _,
         } = item;
 
-        write!(f, [text("*"), value.format()])
+        let comments = f.context().comments().clone();
+        let dangling = comments.dangling_comments(item);
+
+        write!(f, [text("*"), dangling_comments(dangling), value.format()])
     }
 
     fn fmt_dangling_comments(

crates/ruff_python_formatter/src/expression/expr_tuple.rs

@@ -204,7 +204,7 @@ impl NeedsParentheses for ExprTuple {
 }
 
 /// Check if a tuple has already had parentheses in the input
-fn is_tuple_parenthesized(tuple: &ExprTuple, source: &str) -> bool {
+pub(crate) fn is_tuple_parenthesized(tuple: &ExprTuple, source: &str) -> bool {
     let Some(elt) = tuple.elts.first() else {
         return false;
     };