build(deps-dev): Bump postcss-preset-env from 10.2.0 to 10.2.1 (#403)

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Bumps [postcss-preset-env](https://github.com/csstools/postcss-plugins/tree/HEAD/plugin-packs/postcss-preset-env) from 10.2.0 to 10.2.1.
<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>10.2.1</h3>
<p><em>June 5, 2025</em></p>
<ul>
<li>Updated <a href="https://github.com/csstools/postcss-plugins/tree/main/plugins/postcss-custom-properties"><code>postcss-custom-properties</code></a> to <a href="https://github.com/csstools/postcss-plugins/tree/main/plugins/postcss-custom-properties/CHANGELOG.md#1406"><code>14.0.6</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 />


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</details>

## Podsumowanie od Sourcery

Budowanie:
- Aktualizacja postcss-preset-env z 10.2.0 do 10.2.1, wprowadzająca postcss-custom-properties v14.0.6

<details>
<summary>Original summary in English</summary>

## Summary by Sourcery

Build:
- Update postcss-preset-env from 10.2.0 to 10.2.1, bringing in postcss-custom-properties v14.0.6

</details>

Author: aviator-app[bot]

package-lock.json

@@ -55,7 +55,7 @@
     "jest": "^29.7.0",
     "jsdom": "^26.1.0",
     "postcss": "^8.5.4",
-    "postcss-preset-env": "^10.2.0"
+    "postcss-preset-env": "^10.2.1"
   },
   "dependencies": {
     "@flaticon/flaticon-uicons": "^3.3.1",