Update package.json

Author: Cube-J

1.hello-world/5.read-video-vue/package.json

@@ -10,7 +10,7 @@
     "dependencies": {
         "core-js": "^3.6.5",
         "dynamsoft-javascript-barcode": "9.2.10",
-        "vue": "2.6.14"
+        "vue": "^2.7.8"
     },
     "devDependencies": {
         "@vue/cli-plugin-babel": "~4.5.0",