No internet after switch wlan <-> mobile connection using DNS-over-QUIC

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

- [X] I am running the latest version
- [X] I checked the documentation and found no answer
- [X] I checked to make sure that this issue has not already been filed

### AdGuard version

4.4.5

### Tunnel mode

Split-Tunnel

### Environment

```markdown
- OS: 16.3
- Device and storage size: iPhone Xs Max, 64GB
```

### What filters do you have enabled?

AdGuard Base filter, AdGuard Mobile Ads filter, AdGuard German filter, AdGuard Tracking Protection filter

### Issue Details

1. Enable DNS protection
2. DNS Implementation: AdGuard, DNS Server: AdGuard DNS "not filtering" (DNS-over-QUIC)
3. Change your internet connection by e.g. disable WLAN for mobile connection
4. No more internet, because local VPN is "connecting ..." (Status: Verbinden ...) forever
5. To workaround -> En-/Disable flight mode until the next connection change appear

### Expected Behavior

seamless transition from wlan<>mobile with directly connecting local VPN and no need to toogle flight mode

### Screenshots

Video 1:

https://user-images.githubusercontent.com/6276915/216780300-d1e00c49-b15b-4a6f-89b9-802e92716e2e.mp4

### Additional Information

When I use DNS-over-HTTPS I don't have that issue. VPN is connecting directly fine and so I don't miss a message when I walk around.