[Feature] Rename attribute for structures generated through the `sol!` macro

### Component

sol! macro

### Describe the feature you would like

Currently, the structures generated through the `sol!` macro use the exact same naming as in the Solidity code, but it follows different naming conventions than Rust. For example, a Solidity function

```solidity
function foo(uint256 fooBar) external;
```

would create the following Rust structure:

```rust
struct fooCall {
fooBar: U256,
}
```

But we might prefer it to create a structure that follows Rust's naming conventions

```rust
struct FooCall {
foo_bar: U256,
}
```

A serde-like `#[rename(...)]` attribute could be implemented here

### Additional context

_No response_