Wi-Fi calling doesn't work on devices with Qualcomm's software when protection is enabled

### 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

4.12.2

### Environment

- OS version: Android 15, 16
- Device: Xiaomi 15 / 15 Ultra, OnePlus 13

### HTTPS filtering

- [ ] yes, I do

### Root access

- [ ] yes, I have it

### Integration with AdGuard VPN

- [ ] yes, I do

### Routing mode

Local VPN

### Ad Blocking

_No response_

### Privacy

_No response_

### Social

_No response_

### Annoyances

_No response_

### Security

_No response_

### Language-specific

_No response_

### Other

_No response_

### Which DNS server do you use?

DNS protection disabled

### DNS protocol

None

### Custom DNS

_No response_

### What Stealth Mode options do you have enabled?

_No response_

### Issue Details

Steps to reproduce:
1. Enable Wi-Fi - Wi-Fi calling works after 2 seconds
2. Enable AdGuard protection
3. Disable Wi-Fi
4. Enable Wi-Fi

### Expected Behavior

Wi-Fi calling works

### Actual Behavior

Wi-Fi calling doesn't work

### Screenshots

Screenshot 1

### Additional Information

This is a bug in Qualcomm's iWLAN/ePDG implementation that causes the Wi-Fi calling tunnel to be disabled even when the VPN is only used for a limited set of applications or routing prefixes.