[Vue 3] Investigate UploadsView test failures

[jeffsmohan]

After upgrading to Vue 3 with the Vue 2 compatibility layer, a the src/arpa_reporter/views/UploadsView.spec.js tests began failing. They no longer render sub-components like VueGoodTable, and I'm unable to retrieve it using wrapper.findComponent to test the props, as I would normally do for a shallow test.