Blueprints export doesn't include uploaded icons/files

**Describe the bug**
Authentik blueprints are not importing or exporting application meta_icon urls.

**To Reproduce**
Steps to reproduce the behavior:

1. Setup icon for application
2. Try to export application with ak export on worker pod
3. Inspect exported yaml, see no urls to icon in there.
4. Write blueprint with meta_icon in application attributes and try to apply it.
5. See icon url not applied and does not exists in configuration UI

**Expected behavior**
Blueprints should be able to export or import meta_icon attributes

**Version and Deployment (please complete the following information):**

- authentik version: 2025.6.2
- Deployment: helm