Update facade docblocks

Author: taylorotwell

src/Illuminate/Support/Facades/Gate.php

@@ -13,8 +13,8 @@
  * @method static \Illuminate\Auth\Access\Gate policy(string $class, string $policy)
  * @method static \Illuminate\Auth\Access\Gate before(callable $callback)
  * @method static \Illuminate\Auth\Access\Gate after(callable $callback)
- * @method static bool allows(string $ability, array|mixed $arguments = [])
- * @method static bool denies(string $ability, array|mixed $arguments = [])
+ * @method static bool allows(iterable|string $abilities, array|mixed $arguments = [])
+ * @method static bool denies(iterable|string $abilities, array|mixed $arguments = [])
  * @method static bool check(iterable|string $abilities, array|mixed $arguments = [])
  * @method static bool any(iterable|string $abilities, array|mixed $arguments = [])
  * @method static bool none(iterable|string $abilities, array|mixed $arguments = [])