Fix mocked item in test.

Signed-off-by: Jussi Hallila <jussi@hallila.com>

plugins/tech-insights-backend/package.json

@@ -56,7 +56,6 @@
   "devDependencies": {
     "@backstage/backend-test-utils": "^0.1.27",
     "@backstage/cli": "^0.18.1",
-    "@types/luxon": "^2.0.5",    
     "@types/supertest": "^2.0.8",
     "@types/semver": "^7.3.8",
     "supertest": "^6.1.3",

plugins/tech-insights-backend/src/service/techInsightsContextBuilder.test.ts

@@ -27,7 +27,7 @@ import { Knex } from 'knex';
 
 jest.mock('./fact/FactRetrieverRegistry');
 jest.mock('./fact/FactRetrieverEngine', () => ({
-  FactRetrieverEngine: {
+  DefaultFactRetrieverEngine: {
     create: jest.fn().mockResolvedValue({
       schedule: jest.fn(),
     }),