build fix

Author: AJIXuMuK

package.json

@@ -41,6 +41,7 @@
     "@microsoft/sp-webpart-base": "~1.3.0",
     "@microsoft/sp-webpart-workbench": "~1.3.0",
     "@types/chai": ">=3.4.34 <3.6.0",
+    "@types/cheerio": "0.22.13",
     "@types/enzyme": "2.8.7",
     "@types/mocha": ">=2.2.33 <2.6.0",
     "@types/react": "15.0.38",