Bump autoprefixer in /apps/block_scout_web/assets

Bumps [autoprefixer](https://github.com/postcss/autoprefixer) from 10.4.16 to 10.4.19.
- [Release notes](https://github.com/postcss/autoprefixer/releases)
- [Changelog](https://github.com/postcss/autoprefixer/blob/main/CHANGELOG.md)
- [Commits](postcss/autoprefixer@10.4.16...10.4.19)

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

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

apps/block_scout_web/assets/package.json

@@ -85,7 +85,7 @@
  "devDependencies": {
  "@babel/core": "^7.23.6",
  "@babel/preset-env": "^7.23.6",
- "autoprefixer": "^10.4.16",
+ "autoprefixer": "^10.4.19",
  "babel-loader": "^9.1.3",
  "copy-webpack-plugin": "^11.0.0",
  "css-loader": "^6.8.1",