fixed test

src/index.spec.ts

@@ -4,7 +4,7 @@ import { getCitiesDataToJson } from './getCities';
 describe('writeCitiesToDist', () => {
     it('should write cities to file and check if it exists', async () => {
         await getCitiesDataToJson();
-        const fileExists = fs.existsSync('dist/cities.json');
+        const fileExists = fs.existsSync('src/cities.json');
         expect(fileExists).toBe(true);
     });
 });