Bump rtlcss from 2.6.2 to 3.0.0 (#32431)

Bumps [rtlcss](https://github.com/MohammadYounes/rtlcss) from 2.6.2 to 3.0.0.
- [Release notes](https://github.com/MohammadYounes/rtlcss/releases)
- [Changelog](https://github.com/MohammadYounes/rtlcss/blob/master/CHANGELOG.md)
- [Commits](https://github.com/MohammadYounes/rtlcss/compare/2.6.2...3.0.0)

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package.json

@@ -137,7 +137,7 @@
     "postcss-cli": "^8.3.0",
     "rollup": "^2.34.2",
     "rollup-plugin-istanbul": "^2.0.1",
-    "rtlcss": "^2.6.2",
+    "rtlcss": "^3.0.0",
     "sass": "^1.30.0",
     "shelljs": "^0.8.4",
     "stylelint": "^13.8.0",