Upgrade to Laravel 10

app/Http/Middleware/LinkHeadersMiddleware.php

@@ -3,16 +3,15 @@
 namespace App\Http\Middleware;
 
 use Closure;
+use Illuminate\Http\Request;
+use Symfony\Component\HttpFoundation\Response;
 
 class LinkHeadersMiddleware
 {
     /**
      * Handle an incoming request.
-     *
-     * @param  \Illuminate\Http\Request  $request
-     * @return mixed
      */
-    public function handle($request, Closure $next)
+    public function handle(Request $request, Closure $next): Response
     {
         $response = $next($request);
         $response->header('Link', '<https://indieauth.com/auth>; rel="authorization_endpoint"', false);