fixup! [IMP] CI: skip tests after test migration if there are no modules

Author: hbrunn

.github/workflows/test-migration.yml

@@ -163,10 +163,10 @@ jobs:
               --without-demo=$MODULES_NEW \
               --update=$MODULES_NEW
       - name: Generate coverage.xml
-        if: ${{ jobs.run_migration.outputs.modules_new != '' }}
+        if: ${{ steps.run_migration.outputs.modules_new != '' }}
         run: coverage xml
       - uses: codecov/codecov-action@v4
-        if: ${{ jobs.run_migration.outputs.modules_new != '' }}
+        if: ${{ steps.run_migration.outputs.modules_new != '' }}
         with:
           files: coverage.xml
           token: ${{ secrets.CODECOV_TOKEN }}