fix(core): update

ts/smartsitemap.plugins.ts

@@ -3,12 +3,14 @@ import * as smartcache from '@pushrocks/smartcache';
 import * as smartfeed from '@pushrocks/smartfeed';
 import * as smartxml from '@pushrocks/smartxml';
 import * as smartyaml from '@pushrocks/smartyaml';
+import * as webrequest from '@pushrocks/webrequest';
 
 export {
   smartcache,
   smartfeed,
   smartxml,
-  smartyaml
+  smartyaml,
+  webrequest
 };
 
 // tsclass