### Godot version

4.0.beta10 mono and standard

### System information

Windows 10 64bits

### Issue description

When exporting a project, Godot fails to bundle the required DLLs from the GDExtension to the export folder:

```
editor/export/editor_export_plugin.h:123 - Required virtual method EditorExportPlugin::_get_name must be overridden before calling.
  No suitable library found for GDExtension: res://webrtc/webrtc.gdextension. Possible feature flags for your platform: pc, s3tc, windows, x86_64, template, template_debug
```

### Steps to reproduce

Export for Windows with the existing configuration: WebRTC DLLs won't be copied in the export folder

### Minimal reproduction project

[Repro.zip](https://github.com/godotengine/godot/files/10368987/Repro.zip)

#include "editor_export_platform.h"
#include "core/config/project_settings.h"
#include "core/crypto/crypto_core.h"
#include "core/extension/gdextension.h"
#include "core/io/file_access_encrypted.h"
#include "core/io/file_access_pack.h" 
#include "core/io/zip_io.h"
#include "core/version.h"
#include "editor/editor_file_system.h"
#include "editor/editor_node.h"
#include "editor/editor_paths.h"
#include "editor/editor_scale.h"
#include "editor/editor_settings.h"
#include "editor/plugins/script_editor_plugin.h"
#include "editor_export_plugin.h"
#include "scene/resources/packed_scene.h"
static int _get_pad(int p_alignment, int p_n) {