chore: add spdx header to new test file

Signed-off-by: Elizabeth Danzberger <lizzy7128@tutanota.de>

Author: elzody

cypress/component/editor/search.cy.js

@@ -1,3 +1,8 @@
+/**
+ * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
 import { Editor } from '@tiptap/core'
 import { Document } from '@tiptap/extension-document'
 import { Text } from '@tiptap/extension-text'