docs: make @var more precise

Author: kenjis

phpstan-baseline.php

@@ -10459,12 +10459,6 @@
 	'count' => 1,
 	'path' => __DIR__ . '/system/Validation/Validation.php',
 ];
-$ignoreErrors[] = [
-	// identifier: missingType.iterableValue
-	'message' => '#^Property CodeIgniter\\\\Validation\\\\Validation\\:\\:\\$rules type has no value type specified in iterable type array\\.$#',
-	'count' => 1,
-	'path' => __DIR__ . '/system/Validation/Validation.php',
-];
 $ignoreErrors[] = [
 	// identifier: missingType.iterableValue
 	'message' => '#^Property CodeIgniter\\\\Validation\\\\Validation\\:\\:\\$validated type has no value type specified in iterable type array\\.$#',

system/Validation/Validation.php

@@ -51,7 +51,7 @@ class Validation implements ValidationInterface
     /**
      * Stores the actual rules that should be run against $data.
      *
-     * @var array
+     * @var array<array-key, array{label?: string, rules: list<string>}>
      *
      * [
      *     field1 => [