refactor: updates eslint rules

eslint.config.js

@@ -23,6 +23,7 @@ export default [{
     ...eslintMochaPlugin.configs.recommended.rules,
     ...eslintChaiExpectPlugin.configs['recommended-flat'].rules,
     "no-unused-vars": ["error", {caughtErrors: "none"}],
+    'no-duplicate-imports': 'error',
   },
   files: ['src/**/*.js'],
 }];

src/create-spies-group.spec.js

@@ -1,6 +1,5 @@
 import {expect} from 'chai';
-import {SpiesGroup} from './create-spies-group.js';
-import {createSpiesGroup} from './create-spies-group.js';
+import {SpiesGroup, createSpiesGroup} from './create-spies-group.js';
 
 describe('SpiesGroup', function () {
   describe('createSpiesGroup factory', function () {