test: make it async

src/socket.io/admin/settings.js

@@ -19,6 +19,6 @@ Settings.set = async function (socket, data) {
 	await events.log(eventData);
 };
 
-Settings.clearSitemapCache = function () {
+Settings.clearSitemapCache = async function () {
 	require('../../sitemap').clearCache();
 };

test/socket.io.js

@@ -564,9 +564,8 @@ describe('socket.io', () => {
 		});
 	});
 
-	it('should clear sitemap cache', (done) => {
-		socketAdmin.settings.clearSitemapCache({ uid: adminUid }, {});
-		done();
+	it('should clear sitemap cache', async () => {
+		await socketAdmin.settings.clearSitemapCache({ uid: adminUid }, {});
 	});
 
 	it('should send test email', async () => {