fix(models): BisCompanyForm type can be null

The original definitions didn't include optional, so adding it manually

composer.lock

@@ -733,16 +733,16 @@
         },
         {
             "name": "phpstan/phpstan",
-            "version": "1.11.10",
+            "version": "1.11.11",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpstan.git",
-                "reference": "640410b32995914bde3eed26fa89552f9c2c082f"
+                "reference": "707c2aed5d8d0075666e673a5e71440c1d01a5a3"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/640410b32995914bde3eed26fa89552f9c2c082f",
-                "reference": "640410b32995914bde3eed26fa89552f9c2c082f",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/707c2aed5d8d0075666e673a5e71440c1d01a5a3",
+                "reference": "707c2aed5d8d0075666e673a5e71440c1d01a5a3",
                 "shasum": ""
             },
             "require": {
@@ -787,7 +787,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2024-08-08T09:02:50+00:00"
+            "time": "2024-08-19T14:37:29+00:00"
         },
         {
             "name": "psr/container",

gen/models.txt

@@ -48,7 +48,7 @@ BisCompanyForm {
     endDate (string, optional): Ending date of registration
     name (string): Name of company form
     language (string, optional): Two letter language code
-    type (string): Type of company form
+    type (string, optional): Type of company form
 }
 
 BisCompanyLiquidation {

src/Dto/BisCompanyForm.php

@@ -32,5 +32,5 @@ class BisCompanyForm extends DataTransferObject
     /**
      * Type of company form
      */
-    public string $type = '';
+    public ?string $type = null;
 }