RSS Feed fails if it contains invalid UTF-8

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Version
1.34.1

Describe the bug
When testing an RSS Feed I'm trying to use, Autobrr will throw an error on this line:

<title><![CDATA[La Civilt&Atilde;  Cattolica]]></title>

ERR error fetching rss feed items error="XML syntax error on line 1812: invalid UTF-8"

I'm not exactly sure what part of it triggers it, but the only difference I see between this title and the others in the RSS, is that this one containsÃ.
If I filter out the article that contains the incriminated line, the error goes away and the feed works.

To Reproduce
Steps to reproduce the behavior:

1. Add a Generic RSS feed whose content contains the line above
2. Click on TEST
3. It will fail and throw the error