chore(deps): Bump wpt from 9da4afa to af83b77 (#2940)

Bumps [wpt](https://github.com/web-platform-tests/wpt) from `9da4afa` to
`af83b77`.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/web-platform-tests/wpt/commit/af83b77e27b2d02bcd02fce954db9b4570143b9d"><code>af83b77</code></a>
part 18) Add sink tests for &quot;get Trusted Types-compliant attribute
value&quot;.</li>
<li><a
href="https://github.com/web-platform-tests/wpt/commit/de118778cb6fac7e082c6c57755356ab291af662"><code>de11877</code></a>
part 17.2) Add Worker/SharedWorker tests to
&lt;block-string-assignment-to-DOMWi...</li>
<li><a
href="https://github.com/web-platform-tests/wpt/commit/40b50ed1f854b06e2a01b210ebce9dbc6351a10d"><code>40b50ed</code></a>
part 17.1) Move JS code from
&lt;block-string-assignment-to-DOMWindowTimers-setT...</li>
<li><a
href="https://github.com/web-platform-tests/wpt/commit/decb124cbafb423f08c224b5e52d65939b717f6b"><code>decb124</code></a>
part 16) Add check in WPT for Element's insertAdjacentHTML's sink
value.</li>
<li><a
href="https://github.com/web-platform-tests/wpt/commit/bab03c2f5cb104143a2c78010162d2f4c7631442"><code>bab03c2</code></a>
part 15) Add check for Range's createContextualFragment's sink
value.</li>
<li><a
href="https://github.com/web-platform-tests/wpt/commit/58c1148991566b4b3454edac0f9a8e11010e20b2"><code>58c1148</code></a>
Add a testcase</li>
<li><a
href="https://github.com/web-platform-tests/wpt/commit/0669ef6dc697a069926084ea2031213e9864a39a"><code>0669ef6</code></a>
part 14) Add WPTs for checking <code>parseFromString</code>'s trusted
types' sink string...</li>
<li><a
href="https://github.com/web-platform-tests/wpt/commit/91408f63739920fbed73b765726b61831cb60879"><code>91408f6</code></a>
part 13) Add WPTs for checking <code>innerHTML</code>'s trusted types'
sink string of th...</li>
<li><a
href="https://github.com/web-platform-tests/wpt/commit/3873702911118f811ffac582a5e59aa0b5e3bc28"><code>3873702</code></a>
part 12) Add WPTs for checking <code>outerHTML</code>'s trusted types'
sink string of th...</li>
<li><a
href="https://github.com/web-platform-tests/wpt/commit/f128fd3a9e0700d153f326481730bc3e52c7f56c"><code>f128fd3</code></a>
part 11) Add WPTs for checking <code>setHTMLUnsafe</code>'s trusted
types' sink string o...</li>
<li>Additional commits viewable in <a
href="https://github.com/web-platform-tests/wpt/compare/9da4afa6c6b0eab00a9d993a863e7cd5daa916dc...af83b77e27b2d02bcd02fce954db9b4570143b9d">compare
view</a></li>
</ul>
</details>
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