refactor: stop using getVoidLogger in tests

Signed-off-by: Camila Belo <camilaibs@gmail.com>

plugins/devtools-backend/src/service/router.test.ts

@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-import { getVoidLogger } from '@backstage/backend-common';
 import { ConfigReader } from '@backstage/config';
 import express from 'express';
 import request from 'supertest';
@@ -38,7 +37,7 @@ describe('createRouter', () => {
 
   beforeAll(async () => {
     const router = await createRouter({
-      logger: getVoidLogger(),
+      logger: mockServices.logger.mock(),
       config: new ConfigReader({
         healthCheck: {
           endpoint: [