Bump autoprefixer from 10.2.5 to 10.2.6 in /packages/dashboard

Bumps [autoprefixer](https://github.com/postcss/autoprefixer) from 10.2.5 to 10.2.6.
- [Release notes](https://github.com/postcss/autoprefixer/releases)
- [Changelog](https://github.com/postcss/autoprefixer/blob/main/CHANGELOG.md)
- [Commits](https://github.com/postcss/autoprefixer/compare/10.2.5...10.2.6)

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

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

packages/dashboard/package.json

@@ -13,7 +13,7 @@
     "@stripe/react-stripe-js": "1.4.0",
     "@stripe/stripe-js": "1.15.0",
     "@tailwindcss/forms": "0.3.3",
-    "autoprefixer": "10.2.5",
+    "autoprefixer": "10.2.6",
     "classnames": "2.3.1",
     "clipboardy": "2.3.0",
     "dayjs": "1.10.5",