### 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)

fhead->store_buffer((const uint8_t *)pd.file_ofs[i].path_utf8.get_data(), string_len);
		for (uint32_t j = 0; j < pad; j++) {
			fhead->store_8(0);
		}
		fhead->store_64(pd.file_ofs[i].ofs);
		fhead->store_64(pd.file_ofs[i].size); 
		fhead->store_buffer(pd.file_ofs[i].md5.ptr(), 16); 
		uint32_t flags = 0;
		if (pd.file_ofs[i].encrypted) {
			flags |= PACK_FILE_ENCRYPTED;
		}
		fhead->store_32(flags);
	}
	if (fae.is_valid()) {
		fhead.unref();
		fae.unref();
	}
	int header_padding = _get_pad(PCK_PADDING, f->get_position());
	for (int i = 0; i < header_padding; i++) {
		f->store_8(Math::rand() % 256);
	}
	uint64_t file_base = f->get_position();
	f->seek(file_base_ofs);
	f->store_64(file_base); 
	f->seek(file_base);
	
	ftmp = FileAccess::open(tmppath, FileAccess::READ);
	if (ftmp.is_null()) {
		DirAccess::remove_file_or_error(tmppath);
		add_message(EXPORT_MESSAGE_ERROR, TTR("Save PCK"), vformat(TTR("Can't open file to read from path \"%s\"."), tmppath));