Refactor getInts to explicitly set split Limit in preg_split

- Set `-1` as the limit in `preg_split` within the `getInts` method to explicitly prevent a split limit,

According to [w3schools documentation](https://www.w3schools.com/php/func_regex_preg_split.asp), `-1` is the default limit. However, this was not working...

Considered using `explode` for simplicity but retained `preg_split` for its whitespace-trimming capability. This ensures consistent handling of branch IDs that may include extra spaces around separators (e.g., "18 , 24").

web/modules/custom/drupal_typed/src/RequestTyped.php

@@ -87,7 +87,7 @@ public function getInts(string $key, array $default = [], string $separator = ",
     if ($value === NULL) {
       return $default;
     }
-    $strings = \Safe\preg_split("/\s*{$separator}\s*/", $value, PREG_SPLIT_NO_EMPTY);
+    $strings = \Safe\preg_split("/\s*{$separator}\s*/", $value, -1, PREG_SPLIT_NO_EMPTY);
     return array_map(fn($value) => intval($value), $strings);
   }