fix: fix set npm tags

Author: zdm

lib/package/npm.js

@@ -230,7 +230,7 @@ export default class Npm {
 
         res = await this.api.getPackageTags( this.pkg.name );
         if ( !res.ok ) return res;
-        const remoteTags = res.data;
+        const remoteTags = res.data || {};
 
         for ( const [ tag, version ] of Object.entries( tags ) ) {