Add static to isBuiltin() check in ide-helper:models (#1541)

* Add `\\static` as check

For some reason, the `static` keyword as a return type, does not return `isBuiltin()` === true, so a `\\` is added. We need to manually add it to the built in check.

* Update ModelsCommand.php

* Add tests

* Add CHANGELOG.md entry

---------

Co-authored-by: Markus Podar <[email protected]>
Co-authored-by: Barry vd. Heuvel <[email protected]>

tests/Console/ModelsCommand/LaravelCustomCasts/Casts/CustomCasterWithStaticReturnType.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace Barryvdh\LaravelIdeHelper\Tests\Console\ModelsCommand\LaravelCustomCasts\Casts;
+
+use Illuminate\Contracts\Database\Eloquent\CastsAttributes;
+use Illuminate\Database\Eloquent\Model;
+
+class CustomCasterWithStaticReturnType implements CastsAttributes
+{
+    public function get(Model $model, string $key, mixed $value, array $attributes): static
+    {
+        // TODO: Implement get() method.
+    }
+
+    public function set(Model $model, string $key, mixed $value, array $attributes): array
+    {
+        // TODO: Implement set() method.
+    }
+}