Bump autoprefixer from 10.3.4 to 10.4.0

Bumps [autoprefixer](https://github.com/postcss/autoprefixer) from 10.3.4 to 10.4.0.
- [Release notes](https://github.com/postcss/autoprefixer/releases)
- [Changelog](https://github.com/postcss/autoprefixer/blob/main/CHANGELOG.md)
- [Commits](postcss/autoprefixer@10.3.4...10.4.0)

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

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

Author: dependabot[bot]

package-lock.json

@@ -36,7 +36,7 @@
     "web3modal": "^1.9.4"
   },
   "devDependencies": {
-    "autoprefixer": "10.3.4",
+    "autoprefixer": "10.4.0",
     "babel-plugin-styled-components": "^2.0.2",
     "classnames": "2.3.1",
     "eslint": "7.32.0",