updating npm packages

Author: damienbod

src/AspNetCoreFileUploadFileTable/package-lock.json

@@ -3,9 +3,9 @@
   "name": "asp.net",
   "private": true,
   "devDependencies": {
-    "bootstrap": "4.1.3",
-    "jquery": "3.3.1",
-    "jquery-validation": "1.18.0",
+    "bootstrap": "4.3.1",
+    "jquery": "3.4.1",
+    "jquery-validation": "1.19.1",
     "jquery-validation-unobtrusive": "3.2.11",
     "jquery-ajax-unobtrusive": "3.2.6"
   }