Fixes static analysis

src/Http/Requests/AssertedRequest.php

@@ -48,10 +48,11 @@ class AssertedRequest extends FormRequest
      * Logs in the user for this assertion request.
      *
      * @param  string|null  $guard
-     * @return \Laragear\WebAuthn\Contracts\WebAuthnAuthenticatable&\Illuminate\Contracts\Auth\Authenticatable|null
+     * @return \Laragear\WebAuthn\Contracts\WebAuthnAuthenticatable|\Illuminate\Contracts\Auth\Authenticatable|null
      */
     public function login(string $guard = null, bool $remember = null, bool $destroySession = false): ?WebAuthnAuthenticatable
     {
+        /** @var \Illuminate\Contracts\Auth\StatefulGuard $guard */
         $auth = Auth::guard($guard);
 
         if ($auth->attempt($this->validated(), $remember ?? $this->hasRemember())) {

src/Http/Requests/AssertionRequest.php

@@ -133,7 +133,9 @@ class AssertionRequest extends FormRequest
         // retrieve by its ID, otherwise we will fall back to credentials. Once done, we
         // will check it uses WebAuthn if is not null, otherwise we'll fail miserably.
         $user = is_string($credentials) || is_int($credentials)
+            // @phpstan-ignore-next-line
             ? Auth::guard($this->guard)->getProvider()->retrieveById($credentials)
+            // @phpstan-ignore-next-line
             : Auth::guard($this->guard)->getProvider()->retrieveByCredentials($credentials);
 
         if ($user && ! $user instanceof WebAuthnAuthenticatable) {