OSV-2021-830 Heap-use-after-free in AK::Utf8CodePointIterator::operator*

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=34911 Crash type: Heap-use-after-free READ 1 Crash state: AK::Utf8CodePointIterator::operator AK::URLParser::parse AK::URL::URL...