In Compression Dictionaries WPT tests, id=<string> doesn't remove quotes

[jesup]

I presume the Chrome implementation also has this bug - the WPT dictionary-registration.tentative.https.html assumes that id="test" will yield an id of '"test"', when it should be 'test' per RFC 8941 (Structured Field Values for HTTP) 3.3.3 Strings. I haven't checked match-dest, which is an inner list of strings. I presume the match value (also a string) is removing the quotes.

I haven't checked other WPTs, but I assume they all have this issue.

[miketaylr]

https://github.com/web-platform-tests/wpt/blob/5116af98c0e8b911fe9404e1a020078b274b4fb5/fetch/compression-dictionary/dictionary-registration.tentative.https.html#L27

[jesup]

@miketaylr exactly