fix(rust): indentation in multi-line for expression

Fix indentation when the for loop expression is on multiple lines

Example:

previous:

```rust
for (
    abc,
    def
) in thing.iter() {
        // ...
    }
```
new:

```rust
for (
    abc,
    def
) in thing.iter() {
    // ...
}
```

queries/rust/indents.scm

@@ -3,7 +3,6 @@
   (struct_item)
   (enum_item)
   (impl_item)
-  (for_expression)
   (struct_expression)
   (struct_pattern)
   (tuple_struct_pattern)