style(server-communication-config): fix cfg-gated import order

Nightly rustfmt requires cfg-gated imports to precede unconditional
imports within the same group. The `#[cfg(not(target_arch = "wasm32"))]
use std::collections::HashMap` must appear before `use std::sync::Arc`
to satisfy the formatter's ordering rules.

No logic change — import ordering only.

Author: addisonbeck

crates/bitwarden-server-communication-config/src/middleware.rs

@@ -1,7 +1,6 @@
-use std::sync::Arc;
-
 #[cfg(not(target_arch = "wasm32"))]
 use std::collections::HashMap;
+use std::sync::Arc;
 
 use reqwest::header::HeaderValue;
 use reqwest_middleware::{Middleware, Next, Result};