refactor: cast to correct type

Author: kenjis

src/Authentication/Authenticators/AccessTokens.php

@@ -44,7 +44,7 @@ public function attempt(array $credentials): Result
         $request = service('request');
 
         $ipAddress = $request->getIPAddress();
-        $userAgent = $request->getUserAgent();
+        $userAgent = (string) $request->getUserAgent();
 
         $result = $this->check($credentials);
 

src/Authentication/Authenticators/Session.php

@@ -98,7 +98,7 @@ public function attempt(array $credentials): Result
         $request = service('request');
 
         $ipAddress = $request->getIPAddress();
-        $userAgent = $request->getUserAgent();
+        $userAgent = (string) $request->getUserAgent();
 
         $result = $this->check($credentials);
 

src/Controllers/MagicLinkController.php

@@ -178,7 +178,7 @@ private function recordLoginAttempt(
             $identifier,
             $success,
             $this->request->getIPAddress(),
-            $this->request->getUserAgent(),
+            (string) $this->request->getUserAgent(),
             $userId
         );
     }