[9.x] Fix Support\Collection reject method type definition

src/Illuminate/Collections/Enumerable.php

@@ -1099,7 +1099,7 @@ public function pluck($value, $key = null);
     /**
      * Create a collection of all elements that do not pass a given truth test.
      *
-     * @param  (callable(TValue): bool)|bool  $callback
+     * @param  (callable(TValue, TKey): bool)|bool  $callback
      * @return static
      */
     public function reject($callback = true);

src/Illuminate/Collections/Traits/EnumeratesValues.php

@@ -788,7 +788,7 @@ class_basename(static::class), gettype($result)
     /**
      * Create a collection of all elements that do not pass a given truth test.
      *
-     * @param  (callable(TValue): bool)|bool  $callback
+     * @param  (callable(TValue, TKey): bool)|bool  $callback
      * @return static
      */
     public function reject($callback = true)

types/Support/Collection.php

@@ -735,6 +735,12 @@
 
     return true;
 }));
+assertType('Illuminate\Support\Collection<int, User>', $collection->reject(function ($user, $int) {
+    assertType('User', $user);
+    assertType('int', $int);
+
+    return true;
+}));
 
 assertType('Illuminate\Support\Collection<int, User>', $collection->unique());
 assertType('Illuminate\Support\Collection<int, User>', $collection->unique(function ($user, $int) {