build(deps-dev): bump postcss-preset-env from 7.5.0 to 9.5.1

Bumps [postcss-preset-env](https://github.com/csstools/postcss-plugins/tree/HEAD/plugin-packs/postcss-preset-env) from 7.5.0 to 9.5.1.
- [Changelog](https://github.com/csstools/postcss-plugins/blob/main/plugin-packs/postcss-preset-env/CHANGELOG.md)
- [Commits](https://github.com/csstools/postcss-plugins/commits/HEAD/plugin-packs/postcss-preset-env)

---
updated-dependencies:
- dependency-name: postcss-preset-env
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

site/marketplace/package.json

@@ -58,7 +58,7 @@
     "eslint-config-next": "12.1.6",
     "eslint-config-prettier": "8.5.0",
     "postcss-flexbugs-fixes": "5.0.2",
-    "postcss-preset-env": "7.5.0",
+    "postcss-preset-env": "9.5.1",
     "prettier": "2.7.1",
     "typescript": "4.7.4"
   },