35980: jsoup:HtmlFuzzer: Timeout in HtmlFuzzer

[jhy]

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35980&cursor=oss-fuzz%3A35941&q=label%3AProj-jsoup
Detailed Report: https://oss-fuzz.com/testcase?key=6422889254486016

Project: jsoup
Fuzzing Engine: libFuzzer
Fuzz Target: HtmlFuzzer
Job Type: libfuzzer_asan_jsoup
Platform Id: linux

Crash Type: Timeout (exceeds 60 secs)
Crash Address:
Crash State:
HtmlFuzzer

Sanitizer: address (ASAN)

[jhy]

Another issue effectively the name but in attribute names: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36150

Same fix applied. The other fields in Token for this pattern already use StringBuilders as there is a more frequent need to append repeatedly, vs eating all in one hit. So I hope that this addresses most of this pattern of slow parses from crafted HTML.