Bump postcss-preset-env from 10.0.8 to 10.0.9 in /webapp

Bumps [postcss-preset-env](https://github.com/csstools/postcss-plugins/tree/HEAD/plugin-packs/postcss-preset-env) from 10.0.8 to 10.0.9.
- [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:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

webapp/package.json

@@ -45,7 +45,7 @@
     "postcss-flexbugs-fixes": "^5.0.2",
     "postcss-loader": "^8.1.1",
     "postcss-normalize": "^13.0.1",
-    "postcss-preset-env": "^10.0.8",
+    "postcss-preset-env": "^10.0.9",
     "prompts": "^2.4.2",
     "react": "^18.3.1",
     "react-app-polyfill": "^3.0.0",