Bump the dev-css-sass group with 2 updates

Bumps the dev-css-sass group with 2 updates: [autoprefixer](https://github.com/postcss/autoprefixer) and [sass](https://github.com/sass/dart-sass).


Updates `autoprefixer` from 10.4.20 to 10.4.21
- [Release notes](https://github.com/postcss/autoprefixer/releases)
- [Changelog](https://github.com/postcss/autoprefixer/blob/main/CHANGELOG.md)
- [Commits](postcss/autoprefixer@10.4.20...10.4.21)

Updates `sass` from 1.85.1 to 1.86.3
- [Release notes](https://github.com/sass/dart-sass/releases)
- [Changelog](https://github.com/sass/dart-sass/blob/main/CHANGELOG.md)
- [Commits](sass/dart-sass@1.85.1...1.86.3)

---
updated-dependencies:
- dependency-name: autoprefixer
  dependency-version: 10.4.21
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: dev-css-sass
- dependency-name: sass
  dependency-version: 1.86.3
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: dev-css-sass
...

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

Author: dependabot[bot]

package-lock.json

@@ -33,7 +33,7 @@
 		"@wordpress/e2e-test-utils-playwright": "1.19.1",
 		"@wordpress/prettier-config": "4.19.1",
 		"@wordpress/scripts": "30.12.1",
-		"autoprefixer": "10.4.20",
+		"autoprefixer": "10.4.21",
 		"chalk": "5.4.1",
 		"check-node-version": "4.2.1",
 		"copy-webpack-plugin": "13.0.0",
@@ -64,7 +64,7 @@
 		"prettier": "npm:wp-prettier@3.0.3",
 		"qunit": "~2.23.1",
 		"react-refresh": "0.14.0",
-		"sass": "1.85.1",
+		"sass": "1.86.3",
 		"sinon": "16.1.3",
 		"sinon-test": "~3.1.6",
 		"source-map-loader": "5.0.0",