build(deps-dev): bump postcss-rtlcss in /generators/angular/resources

Bumps [postcss-rtlcss](https://github.com/elchininet/postcss-rtlcss) from 5.1.0 to 5.1.1.
- [Release notes](https://github.com/elchininet/postcss-rtlcss/releases)
- [Changelog](https://github.com/elchininet/postcss-rtlcss/blob/master/CHANGELOG.md)
- [Commits](elchininet/postcss-rtlcss@v5.1.0...v5.1.1)

---
updated-dependencies:
- dependency-name: postcss-rtlcss
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

generators/angular/resources/package.json

@@ -43,7 +43,7 @@
     "jest-preset-angular": "14.0.3",
     "jest-sonar": "0.2.16",
     "merge-jsons-webpack-plugin": "2.0.1",
-    "postcss-rtlcss": "5.1.0",
+    "postcss-rtlcss": "5.1.1",
     "rimraf": "5.0.5",
     "ts-jest": "29.1.2",
     "typescript": "5.4.5",