Update for new Unicode / UTS46 / related URL Standard changes

[domenic]

Update https://github.com/jsdom/tr46 to follow https://unicode.org/reports/tr46/ rev 33 (currently on rev 31).

• whatwg/url@da212c9 (probably not relevant to this library)
• whatwg/url@cd8f1d6
• whatwg/url@a6e4492
• whatwg/url@c3d173f
• whatwg/url@7f3e3b6

Roll web platform tests to web-platform-tests/wpt@7c9c41a (including appropriate harness code for the new file).

[domenic]

Implementation notes part 1: doing this without AI didn't seem like a big burden. I think AI would have been less helpful than average on this task as I ended up flipping back and forth between the spec, the test cases, the blame for the test cases, and the code a lot. The actual implementation was pretty straightforward without much boilerplate. A good ~10-15 minutes was spent writing up web-platform-tests/wpt#51368 as one of the main outputs.

Implementation notes part 2: After getting unblocked on web-platform-tests/wpt#51368 (which happened faster than I expected) the rest of the updates were a bit more mechanical. AI could have shaved off some of the time there for sure, just with basic autocomplete, for the process of setting up the new test fixture. It would have been interesting to try something like "fix domainToASCII to follow https://url.spec.whatwg.org/#concept-domain-to-ascii" and see how it did as well, but I doubt it would have saved time since that part ended up being a 5-minute task.

Implementation notes part 3: AI would not have helped here, as it was just 10 minutes of doing releases and version bumps and tying things together.