fix: Incremented VatDetail Breakdown items limit from 6 to 12

Author: arraintxo

src/Barnetik/Tbai/Invoice/Breakdown.php

@@ -417,7 +417,7 @@ public static function docJson(): array
                 ],
                 'nationalNotSubjectBreakdownItems' => [
                     'type' => 'array',
-                    'maxItems' => 7,
+                    'maxItems' => 4,
                     'items' => NationalNotSubjectBreakdownItem::docJson(),
                     'description' => 'Kargapean ez daudenak - No sujetas a carga'
                 ],
@@ -435,7 +435,7 @@ public static function docJson(): array
                 ],
                 'foreignServiceNotSubjectBreakdownItems' => [
                     'type' => 'array',
-                    'maxItems' => 7,
+                    'maxItems' => 4,
                     'items' => ForeignServiceNotSubjectBreakdownItem::docJson(),
                     'description' => 'Kargapean ez daudenak - No sujetas a carga'
                 ],
@@ -453,7 +453,7 @@ public static function docJson(): array
                 ],
                 'foreignDeliveryNotSubjectBreakdownItems' => [
                     'type' => 'array',
-                    'maxItems' => 7,
+                    'maxItems' => 4,
                     'items' => ForeignDeliveryNotSubjectBreakdownItem::docJson(),
                     'description' => 'Kargapean ez daudenak - No sujetas a carga'
                 ]