Bump stylelint from 13.13.1 to 14.2.0 (#7431)

* Bump stylelint from 13.13.1 to 14.2.0

Bumps [stylelint](https://github.com/stylelint/stylelint) from 13.13.1 to 14.2.0.
- [Release notes](https://github.com/stylelint/stylelint/releases)
- [Changelog](https://github.com/stylelint/stylelint/blob/main/CHANGELOG.md)
- [Commits](https://github.com/stylelint/stylelint/compare/13.13.1...14.2.0)

---
updated-dependencies:
- dependency-name: stylelint
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

* upgrade to newest stylelint

* fix style issues

* fix color function rules to match old Angular

* rollback modern color func

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Denys Vuika <denys.vuika@gmail.com>

demo-shell/src/app/components/process-service/process-service.component.scss

@@ -7,8 +7,10 @@
 .app-grid {
     .app-grid-item {
         margin: 4px;
-        box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14),
-            0 3px 1px -2px rgba(0, 0, 0, 0.2), 0 1px 5px 0 rgba(0, 0, 0, 0.12);
+        box-shadow:
+            0 2px 2px 0 rgba(0, 0, 0, 0.14),
+            0 3px 1px -2px rgba(0, 0, 0, 0.2),
+            0 1px 5px 0 rgba(0, 0, 0, 0.12);
         padding: 10px;
     }