Bump autoprefixer from 10.2.6 to 10.3.0

Bumps [autoprefixer](https://github.com/postcss/autoprefixer) from 10.2.6 to 10.3.0.
- [Release notes](https://github.com/postcss/autoprefixer/releases)
- [Changelog](https://github.com/postcss/autoprefixer/blob/main/CHANGELOG.md)
- [Commits](postcss/autoprefixer@10.2.6...10.3.0)

---
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.json

@@ -31,7 +31,7 @@
     "start": "npm-run-all -s clean -p postcss:watch parcel:serve"
   },
   "devDependencies": {
-    "autoprefixer": "10.2.6",
+    "autoprefixer": "10.3.0",
     "eslint": "7.30.0",
     "eslint-config-standard": "16.0.3",
     "eslint-plugin-import": "2.23.4",