windows: Fix sometimes log error messages don't show the crate name (#18706)

Junkui Zhang created 

On windows, path could be something like `C:\path\to\the\crate`. Hence,
`split('/')` would refuse to work in this case.

### Before

![Screenshot 2024-10-04
023652](https://github.com/user-attachments/assets/9c14fb24-5ee0-4b56-8fbd-313abb28f134)

### After

![Screenshot 2024-10-04
024115](https://github.com/user-attachments/assets/217e175c-b0e1-4589-9c3d-98670882b185)


Release Notes:

- N/A

Change summary

crates/util/src/util.rs | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)

Detailed changes

crates/util/src/util.rs 🔗 

@@ -378,9 +378,13 @@ fn log_error_with_caller<E>(caller: core::panic::Location<'_>, error: E, level:
 where
     E: std::fmt::Debug,
 {
+    #[cfg(not(target_os = "windows"))]
+    let file = caller.file();
+    #[cfg(target_os = "windows")]
+    let file = caller.file().replace('\\', "/");
     // In this codebase, the first segment of the file path is
     // the 'crates' folder, followed by the crate name.
-    let target = caller.file().split('/').nth(1);
+    let target = file.split('/').nth(1);
 
     log::logger().log(
         &log::Record::builder()