UserscriptWrapper does not return result of GM.xmlHttpRequest

### Please answer the following questions for yourself before submitting an issue

- [X] Filters were updated before reproducing an issue
- [X] I checked the [knowledge base](https://adguard.com/kb/) and found no answer
- [X] I checked to make sure that this issue has not already been filed

### AdGuard version

Adguard for Android 4.7 nightly 6

### Browser version

Chrome

### OS version

Android 14

### Issue Details

Steps to reproduce:
1. Install microShield userscript via https://cdn.jsdelivr.net/gh/List-KR/microShield@latest/microShield.user.js.
2. Visit https://dogdrip.net

### Expected Behavior

The CSS remote token should be returned.

### Actual Behavior

`GM.xmlHttpRequest` does not return a `Promise` constructor.

### Screenshots

Screenshots


### Additional Information

https://github.com/AdguardTeam/CoreLibs/issues/1894