fix: correct esm export path in test to remove duplicate .js extension

Author: nadeem-cs

test/esm-exports.spec.ts

@@ -29,7 +29,7 @@ describe('ESM Exports Tests', () => {
     it('should re-export getData from ESM index.js', () => {
       const indexContent = fs.readFileSync(esmIndexPath, 'utf-8');
       // ESM builds include .js extension in import paths
-      expect(indexContent).toContain("export * from './lib/request.js.js'");
+      expect(indexContent).toContain("export * from './lib/request.js'");
     });
 
     it('should verify getData is a named export in ESM build', () => {