bevy_window: Apply #![deny(clippy::allow_attributes, clippy::allow_attributes_without_reason)] (#17213)

# Objective
- https://github.com/bevyengine/bevy/issues/17111

## Solution
Set the `clippy::allow_attributes` and
`clippy::allow_attributes_without_reason` lints to `deny`, and bring
`bevy_window` in line with the new restrictions.

## Testing
`cargo clippy --tests` was run, and no errors were encountered.

crates/bevy_window/src/lib.rs

@@ -1,4 +1,9 @@
 #![cfg_attr(docsrs, feature(doc_auto_cfg))]
+#![deny(
+    clippy::allow_attributes,
+    clippy::allow_attributes_without_reason,
+    reason = "See #17111; To be removed once all crates are in-line with these attributes"
+)]
 #![doc(
     html_logo_url = "https://bevyengine.org/assets/icon.png",
     html_favicon_url = "https://bevyengine.org/assets/icon.png"

crates/bevy_window/src/raw_handle.rs

@@ -1,4 +1,7 @@
-#![allow(unsafe_code)]
+#![expect(
+    unsafe_code,
+    reason = "This module acts as a wrapper around the `raw_window_handle` crate, which exposes many unsafe interfaces; thus, we have to use unsafe code here."
+)]
 
 use alloc::sync::Arc;
 use bevy_ecs::prelude::Component;