Sync web-platform-tests PR 41165 into mozilla-central (this bug is closed when the sync is complete).

PR: https://github.com/web-platform-tests/wpt/pull/41165
Details from upstream follow.

dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> wrote:

Bump cairocffi from 1.5.1 to 1.6.1 in /tools

Bumps cairocffi from 1.5.1 to 1.6.1.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/Kozea/cairocffi/blob/master/NEWS.rst">cairocffi's changelog</a>.</em></p>
<blockquote>
<h2>cairocffi changelog</h2>
<p>Version 1.6.1
.............</p>
<p>Released on 2023-07-24</p>
<ul>
<li><code>#217 <https://github.com/Kozea/cairocffi/issues/217&gt;</code>:
Repair installation with PyInstaller</li>
</ul>
<p>Version 1.6.0
.............</p>
<p>Released on 2023-06-12</p>
<p><strong>This version uses a new CFFI mode that may break your program.</strong></p>
<p>CairoCFFI now uses Flit for packaging and is also distributed as a Python
wheel.</p>
<p>Please test carefully and don’t hesitate to report issues before using it in
production.</p>
<ul>
<li><code>#216 <https://github.com/Kozea/cairocffi/pull/216&gt;</code>:
Use ABI-level in-line CFFI mode</li>
</ul>
<p>Version 1.5.1
.............</p>
<p>Released on 2023-04-15</p>
<ul>
<li><code>#212 <https://github.com/Kozea/cairocffi/issues/212&gt;</code>:
Bring back XCB support during wheel generation</li>
</ul>
<p>Version 1.5.0
.............</p>
<p>Released on 2023-03-17</p>
<ul>
<li><code>#106 <https://github.com/Kozea/cairocffi/issues/106&gt;</code><em>,
<code>#200 <https://github.com/Kozea/cairocffi/issues/200&gt;</code></em>:
Fallback to manual PNG file creation on hardened systems</li>
<li><code>#210 <https://github.com/Kozea/cairocffi/pull/210&gt;</code>:
Use pyproject.toml for packaging and remove other useless files</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/Kozea/cairocffi/commit/f1984d644bbc462ef0ec33b97782cf05733d7b53"><code>f1984d6</code></a> Version 1.6.1</li>
<li><a href="https://github.com/Kozea/cairocffi/commit/075c367b9dc4618751fa876b0744ade98ac29d78"><code>075c367</code></a> Remove old import workaround for setuptools</li>
<li><a href="https://github.com/Kozea/cairocffi/commit/197740f1ebfeb4ff0b525e02b574a5a5d021a4d6"><code>197740f</code></a> Remove useless pyproject.toml configuration entry</li>
<li><a href="https://github.com/Kozea/cairocffi/commit/2436dfa65df58d854eff3a7fb0f81a0cbf010a7d"><code>2436dfa</code></a> Add favicon in documentation</li>
<li><a href="https://github.com/Kozea/cairocffi/commit/8db0e907c569c8628985b9ee4a3b394f392fef8d"><code>8db0e90</code></a> Update documentation links</li>
<li><a href="https://github.com/Kozea/cairocffi/commit/0273123c93a2036128e1b0ba66eaacfaa3fbd0b1"><code>0273123</code></a> Update and clean documentation</li>
<li><a href="https://github.com/Kozea/cairocffi/commit/508f0c311384fdc5fb5e7c8e170965c9f792efd1"><code>508f0c3</code></a> Update documentation configuration</li>
<li><a href="https://github.com/Kozea/cairocffi/commit/4ab2c3e6ef5272a382b34186e140b00e5111c5f7"><code>4ab2c3e</code></a> Deploy documentation with doconfly</li>
<li><a href="https://github.com/Kozea/cairocffi/commit/523d508fa7dec9d64bd7f8558751178f96cc775a"><code>523d508</code></a> Version 1.6.0</li>
<li><a href="https://github.com/Kozea/cairocffi/commit/ae7f5cdeb0d47c2dfbe00cb40362046e7d6950b2"><code>ae7f5cd</code></a> Merge pull request <a href="https://redirect.github.com/Kozea/cairocffi/issues/216">#216</a> from Kozea/in-line</li>
<li>Additional commits viewable in <a href="https://github.com/Kozea/cairocffi/compare/v1.5.1...v1.6.1">compare view</a></li>
</ul>
</details>
<br />

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</details>

https://hg.mozilla.org/mozilla-central/rev/6e0dd93eda83