fix: authorize string as key for datasets

src/Datasets.php

@@ -51,7 +51,7 @@ final class Datasets
     /**
      * Resolves the current dataset to an array value.
      *
-     * @param Traversable<int, mixed>|Closure|iterable<int, mixed>|string|null $data
+     * @param Traversable<int|string, mixed>|Closure|iterable<int|string, mixed>|string|null $data
      *
      * @return array<string, mixed>
      */

src/Factories/TestCaseFactory.php

@@ -59,7 +59,7 @@ final class TestCaseFactory
     /**
      * Holds the dataset, if any.
      *
-     * @var Closure|iterable<int, mixed>|string|null
+     * @var Closure|iterable<int|string, mixed>|string|null
      */
     public $dataset;
 

src/PendingObjects/TestCall.php

@@ -78,7 +78,7 @@ final class TestCall
      * Runs the current test multiple times with
      * each item of the given `iterable`.
      *
-     * @param \Closure|iterable<int, mixed>|string $data
+     * @param \Closure|iterable<int|string, mixed>|string $data
      */
     public function with($data): TestCall
     {