deps(dev): bump postcss-loader from 7.3.3 to 7.3.4

Bumps [postcss-loader](https://github.com/webpack-contrib/postcss-loader) from 7.3.3 to 7.3.4.
- [Release notes](https://github.com/webpack-contrib/postcss-loader/releases)
- [Changelog](https://github.com/webpack-contrib/postcss-loader/blob/master/CHANGELOG.md)
- [Commits](webpack-contrib/postcss-loader@v7.3.3...v7.3.4)

---
updated-dependencies:
- dependency-name: postcss-loader
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

package.json

@@ -103,7 +103,7 @@
     "p-retry": "^6.2.0",
     "playwright": "^1.40.1",
     "postcss": "^8.4.32",
-    "postcss-loader": "^7.3.3",
+    "postcss-loader": "^7.3.4",
     "shx": "^0.3.4",
     "tailwindcss": "^3.4.0",
     "tmp": "^0.2.1",