deps: bump the dependency-updates group with 3 updates (#1700)

Bumps the dependency-updates group with 3 updates:
[postcss-preset-env](https://github.com/csstools/postcss-plugins/tree/HEAD/plugin-packs/postcss-preset-env),
[@testing-library/jest-dom](https://github.com/testing-library/jest-dom)
and
[eslint-plugin-primer-react](https://github.com/primer/eslint-plugin-primer-react).

Updates `postcss-preset-env` from 10.2.4 to 10.3.0
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/csstools/postcss-plugins/blob/main/plugin-packs/postcss-preset-env/CHANGELOG.md">postcss-preset-env's
changelog</a>.</em></p>
<blockquote>
<h3>10.3.0</h3>
<p><em>August 22, 2025</em></p>
<ul>
<li>Added <code>@csstools/postcss-alpha-function</code> <a
href="https://github.com/csstools/postcss-plugins/tree/main/plugins/postcss-alpha-function#readme">Check
the plugin README</a> for usage details.</li>
<li>Added
<code>@csstools/postcss-color-function-display-p3-linear</code> <a
href="https://github.com/csstools/postcss-plugins/tree/main/plugins/postcss-color-function-display-p3-linear#readme">Check
the plugin README</a> for usage details.</li>
<li>Updated <a
href="https://github.com/csstools/postcss-plugins/tree/main/packages/css-color-parser"><code>@csstools/css-color-parser</code></a>
to <a
href="https://github.com/csstools/postcss-plugins/tree/main/packages/css-color-parser/CHANGELOG.md#310"><code>3.1.0</code></a>
(minor)</li>
<li>Updated <a
href="https://github.com/csstools/postcss-plugins/tree/main/plugins/postcss-color-function"><code>@csstools/postcss-color-function</code></a>
to <a
href="https://github.com/csstools/postcss-plugins/tree/main/plugins/postcss-color-function/CHANGELOG.md#4011"><code>4.0.11</code></a>
(patch)</li>
<li>Updated <a
href="https://github.com/csstools/postcss-plugins/tree/main/plugins/postcss-color-mix-function"><code>@csstools/postcss-color-mix-function</code></a>
to <a
href="https://github.com/csstools/postcss-plugins/tree/main/plugins/postcss-color-mix-function/CHANGELOG.md#3011"><code>3.0.11</code></a>
(patch)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li>See full diff in <a
href="https://github.com/csstools/postcss-plugins/commits/HEAD/plugin-packs/postcss-preset-env">compare
view</a></li>
</ul>
</details>
<br />

Updates `@testing-library/jest-dom` from 6.7.0 to 6.8.0
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/testing-library/jest-dom/releases"><code>@​testing-library/jest-dom</code>'s
releases</a>.</em></p>
<blockquote>
<h2>v6.8.0</h2>
<h1><a
href="https://github.com/testing-library/jest-dom/compare/v6.7.0...v6.8.0">6.8.0</a>
(2025-08-20)</h1>
<h3>Features</h3>
<ul>
<li>add toBePartiallyPressed matcher (<a
href="https://redirect.github.com/testing-library/jest-dom/issues/203">#203</a>)
(<a
href="https://redirect.github.com/testing-library/jest-dom/issues/692">#692</a>)
(<a
href="https://github.com/testing-library/jest-dom/commit/779b7125d39fe49e8b674f078c4692c1becdc8b4">779b712</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/testing-library/jest-dom/commit/779b7125d39fe49e8b674f078c4692c1becdc8b4"><code>779b712</code></a>
feat: add toBePartiallyPressed matcher (<a
href="https://redirect.github.com/testing-library/jest-dom/issues/203">#203</a>)
(<a
href="https://redirect.github.com/testing-library/jest-dom/issues/692">#692</a>)</li>
<li>See full diff in <a
href="https://github.com/testing-library/jest-dom/compare/v6.7.0...v6.8.0">compare
view</a></li>
</ul>
</details>
<br />

Updates `eslint-plugin-primer-react` from 8.0.0 to 8.1.0
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/primer/eslint-plugin-primer-react/releases">eslint-plugin-primer-react's
releases</a>.</em></p>
<blockquote>
<h2>v8.1.0</h2>
<h3>Minor Changes</h3>
<ul>
<li><a
href="https://redirect.github.com/primer/eslint-plugin-primer-react/pull/382">#382</a>
<a
href="https://github.com/primer/eslint-plugin-primer-react/commit/93e4b76269bf816bfc24991180f73ef22266a6f5"><code>93e4b76</code></a>
Thanks <a
href="https://github.com/jonrohan"><code>@​jonrohan</code></a>! - Add
rule <code>use-styled-react-import</code> to enforce importing
components with sx prop from <code>@​primer/styled-react</code></li>
</ul>
<h3>Patch Changes</h3>
<ul>
<li><a
href="https://redirect.github.com/primer/eslint-plugin-primer-react/pull/389">#389</a>
<a
href="https://github.com/primer/eslint-plugin-primer-react/commit/747fc82dc9fc584005d98b36f8417985469a083a"><code>747fc82</code></a>
Thanks <a
href="https://github.com/llastflowers"><code>@​llastflowers</code></a>!
- Add exception for height and width for SkeletonBox in no-system-props
rule</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/primer/eslint-plugin-primer-react/blob/main/CHANGELOG.md">eslint-plugin-primer-react's
changelog</a>.</em></p>
<blockquote>
<h2>8.1.0</h2>
<h3>Minor Changes</h3>
<ul>
<li><a
href="https://redirect.github.com/primer/eslint-plugin-primer-react/pull/382">#382</a>
<a
href="https://github.com/primer/eslint-plugin-primer-react/commit/93e4b76269bf816bfc24991180f73ef22266a6f5"><code>93e4b76</code></a>
Thanks <a
href="https://github.com/jonrohan"><code>@​jonrohan</code></a>! - Add
rule <code>use-styled-react-import</code> to enforce importing
components with sx prop from <code>@​primer/styled-react</code></li>
</ul>
<h3>Patch Changes</h3>
<ul>
<li><a
href="https://redirect.github.com/primer/eslint-plugin-primer-react/pull/389">#389</a>
<a
href="https://github.com/primer/eslint-plugin-primer-react/commit/747fc82dc9fc584005d98b36f8417985469a083a"><code>747fc82</code></a>
Thanks <a
href="https://github.com/llastflowers"><code>@​llastflowers</code></a>!
- Add exception for height and width for SkeletonBox in no-system-props
rule</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/primer/eslint-plugin-primer-react/commit/21e54569b54218150eea7d852cd8226865b86c5a"><code>21e5456</code></a>
Version Packages (<a
href="https://redirect.github.com/primer/eslint-plugin-primer-react/issues/388">#388</a>)</li>
<li><a
href="https://github.com/primer/eslint-plugin-primer-react/commit/747fc82dc9fc584005d98b36f8417985469a083a"><code>747fc82</code></a>
Add exception for height and width for SkeletonBox in no-system-props
rule (#...</li>
<li><a
href="https://github.com/primer/eslint-plugin-primer-react/commit/d855bea20026c9d648547fc8072517ef6ebabaaa"><code>d855bea</code></a>
Bump eslint from 9.32.0 to 9.33.0 (<a
href="https://redirect.github.com/primer/eslint-plugin-primer-react/issues/386">#386</a>)</li>
<li><a
href="https://github.com/primer/eslint-plugin-primer-react/commit/93e4b76269bf816bfc24991180f73ef22266a6f5"><code>93e4b76</code></a>
Add rule to enforce importing components with sx prop from
<code>@​primer/styled-rea</code>...</li>
<li><a
href="https://github.com/primer/eslint-plugin-primer-react/commit/38aab58412069c6328e213830a3ce340624ce829"><code>38aab58</code></a>
Bump <code>@​typescript-eslint/utils</code> from 8.38.0 to 8.39.0 (<a
href="https://redirect.github.com/primer/eslint-plugin-primer-react/issues/385">#385</a>)</li>
<li><a
href="https://github.com/primer/eslint-plugin-primer-react/commit/3abfcef5dd763934d11f773b8e346f21b6b91467"><code>3abfcef</code></a>
Bump typescript from 5.8.3 to 5.9.2 (<a
href="https://redirect.github.com/primer/eslint-plugin-primer-react/issues/387">#387</a>)</li>
<li>See full diff in <a
href="https://github.com/primer/eslint-plugin-primer-react/compare/v8.0.0...v8.1.0">compare
view</a></li>
</ul>
</details>
<br />


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