fix(dedupe): update demo based on new API

packages/dedupe/demo/dedupe.mjs

@@ -1,14 +1,21 @@
-import {definePackage, definedPackageList} from '@alwatr/dedupe';
-
-// Must throw an error
+import {deduplicate} from '@alwatr/dedupe';
 
 console.log('define test1 package');
-definePackage('@scope/test1');
+deduplicate({name: '@scope/test1'});
+
+console.log('define test2 package with `strict`');
+deduplicate({name: '@scope/test2', strict: true});
 
-console.log('define test2 package');
-definePackage('@scope/test2', 'v1.0.0');
 
-console.log('definedPackageList:', definedPackageList);
+// Must shown an warning
+setTimeout(() => {
+  console.log('re-define test1 package');
+  deduplicate({name: '@scope/test1'});
+}, 1000);
 
-console.log('redefine test2 package');
-definePackage('@scope/test2');
+
+// Must throw an error
+setTimeout(() => {
+  console.log('re-define test2 package with `strict`');
+  deduplicate({name: '@scope/test2', strict: true});
+}, 1000);