Fix: Str::lower() expects string, changed $this->string('email') to $this->string('email')->value(). Illuminate\Support\Stringable -> string

Author: Aluisio-Pires

app/Http/Requests/Auth/LoginRequest.php

@@ -80,6 +80,6 @@ public function ensureIsNotRateLimited(): void
      */
     public function throttleKey(): string
     {
-        return Str::transliterate(Str::lower($this->string('email')).'|'.$this->ip());
+        return Str::transliterate(Str::lower($this->string('email')->value()).'|'.$this->ip());
     }
 }