Bump postcss-preset-env from 7.2.0 to 7.2.3 (#811)

Bumps [postcss-preset-env](https://github.com/csstools/postcss-plugins/tree/HEAD/plugin-packs/postcss-preset-env) from 7.2.0 to 7.2.3.
- [Release notes](https://github.com/csstools/postcss-plugins/releases)
- [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-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -39,7 +39,7 @@
 		"npm-run-all": "^4.1.5",
 		"postcss": "^8.4.5",
 		"postcss-loader": "^6.1.1",
-		"postcss-preset-env": "^7.2.0",
+		"postcss-preset-env": "^7.2.3",
 		"prettier": "npm:wp-prettier@^2.2.1-beta-1",
 		"sass-loader": "^12.1.0",
 		"stylelint-config-prettier": "^9.0.3",