ci: actually enable v2 system test (#21539)

Co-authored-by: Matt Kocubinski <mkocubinski@gmail.com>

.github/workflows/test.yml

@@ -145,7 +145,6 @@ jobs:
           path: ./tests/e2e-profile.out
 
   test-system:
-    needs: [tests, test-integration, test-e2e]
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -177,7 +176,7 @@ jobs:
       - name: system tests v1
         if: env.GIT_DIFF
         run: |
-          COSMOS_BUILD_OPTIONS=legacy make test-system
+          make test-system
       - uses: actions/upload-artifact@v3
         if: failure()
         with:
@@ -187,7 +186,7 @@ jobs:
       - name: system tests v2
         if: env.GIT_DIFF
         run: |
-          make test-system
+          COSMOS_BUILD_OPTIONS=v2 make test-system
       - uses: actions/upload-artifact@v3
         if: failure()
         with: