Remove a job from github actions file

Author: ozovalihasan

.github/workflows/ruby-tests.yml

@@ -77,11 +77,3 @@ jobs:
       - name: Run system tests
         run: |
           bin/rails test:system
-
-      - name: Keep screenshots from failed system tests
-        uses: actions/upload-artifact@v4
-        if: failure()
-        with:
-          name: screenshots
-          path: ${{ github.workspace }}/tmp/screenshots
-          if-no-files-found: ignore