UI: Add copyright header to swagger-ui-test (#23843)

Co-authored-by: Angel Garbarino <Monkeychip@users.noreply.github.com>

ui/tests/integration/components/open-api-explorer/swagger-ui-test.js

@@ -1,3 +1,8 @@
+/**
+ * Copyright (c) HashiCorp, Inc.
+ * SPDX-License-Identifier: BUSL-1.1
+ */
+
 import { module, test } from 'qunit';
 import { setupRenderingTest } from 'vault/tests/helpers';
 import { waitUntil, find } from '@ember/test-helpers';