fix: Clean up whitespace in cache headers section

Author: AKSHAT2802

src/wp-admin/includes/class-wp-site-health.php

@@ -3416,10 +3416,10 @@ public function get_page_cache_headers() {
 			// Generic caching proxies (Nginx, Varnish, etc.)
 			'x-cache'        => $cache_hit_callback,
 			'x-cache-status' => $cache_hit_callback,
-			
+
 			// Cloudflare
 			'cf-cache-status' => $cache_hit_callback,
-			
+
 			// Apache mod_cache
 			'x-cache-detail' => $cache_hit_callback,
 		);