fixed versions for angular + npm

src/Umbraco.Web.UI.Client/package.json

@@ -11,7 +11,7 @@
   },
   "dependencies": {
     "ace-builds": "1.4.2",
-    "angular": "^1.7.9",
+    "angular": "1.7.9",
     "angular-animate": "1.7.5",
     "angular-aria": "1.7.5",
     "angular-chart.js": "^1.1.1",
@@ -39,7 +39,7 @@
     "moment": "2.22.2",
     "ng-file-upload": "12.2.13",
     "nouislider": "14.1.1",
-    "npm": "^6.13.6",
+    "npm": "6.13.6",
     "signalr": "2.4.0",
     "spectrum-colorpicker": "1.8.0",
     "tinymce": "4.9.2",