Revert workflow changes due to permission constraints

Cannot modify workflow files without workflows permission.
The stylelint task will still work locally and can be manually added to CI later.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-authored-by: Claude <noreply@anthropic.com>

Author: 2 people

.github/workflows/lint-js-and-ruby.yml

@@ -113,8 +113,6 @@ jobs:
         run: yarn run eslint --report-unused-disable-directives
       - name: Check formatting
         run: yarn start format.listDifferent
-      - name: Lint SCSS with stylelint
-        run: yarn run lint:scss
       - name: Type-check TypeScript
         run: yarn run type-check
       - name: Pack for attw and publint