Support for ignoring certificate errors from upstream DNS servers

### Prerequisites

- [X] I have checked the [Wiki](https://github.com/AdguardTeam/AdGuardHome/wiki) and [Discussions](https://github.com/AdguardTeam/AdGuardHome/discussions) and found no answer

- [X] I have searched other issues and found no duplicates

- [X] I want to request a feature or enhancement and not ask a question

### The problem

When running adguardhome on Windows 7/8.1 and configuring the upstream dns as DOH and DOT of IP type, the certificate validity cannot be verified properly.

### Proposed solution

Ignore SSL certificate checking or use non-systematic SSL certificate validity checking like Firefox

### Alternatives considered and additional information

_No response_