build: use strict null checks part 5

integration/auto-mock/test/bar.service.spec.ts

@@ -4,6 +4,7 @@ import * as chaiAsPromised from 'chai-as-promised';
 import * as sinon from 'sinon';
 import { BarService } from '../src/bar.service';
 import { FooService } from '../src/foo.service';
+
 chai.use(chaiAsPromised);
 const { expect } = chai;
 

integration/auto-mock/tsconfig.json

@@ -10,6 +10,7 @@
     "target": "ES2021",
     "sourceMap": true,
     "allowJs": true,
+    "strictNullChecks": true,
     "outDir": "./dist",
     "paths": {
       "@nestjs/common": ["../../packages/common"],