[11.x] Replace matches typehint fix (#51095)

* Update Str.php

* Update Stringable.php

* Update Str.php

* Update Stringable.php

---------

Co-authored-by: Taylor Otwell <taylor@laravel.com>

Author: henzeb

src/Illuminate/Support/Str.php

@@ -1200,7 +1200,7 @@ public static function replaceEnd($search, $replace, $subject)
      * Replace the patterns matching the given regular expression.
      *
      * @param  array|string  $pattern
-     * @param  \Closure|string  $replace
+     * @param  \Closure|string[]|string  $replace
      * @param  array|string  $subject
      * @param  int  $limit
      * @return string|string[]|null

src/Illuminate/Support/Stringable.php

@@ -732,7 +732,7 @@ public function replaceEnd($search, $replace)
      * Replace the patterns matching the given regular expression.
      *
      * @param  array|string  $pattern
-     * @param  \Closure|string  $replace
+     * @param  \Closure|string[]|string  $replace
      * @param  int  $limit
      * @return static
      */