Update vue-template-compiler requirement to 2.5.16

Updates the requirements on [vue-template-compiler](https://github.com/vuejs/vue) to permit the latest version.
- [Release notes](https://github.com/vuejs/vue/releases)
- [Commits](https://github.com/vuejs/vue/commits/v2.5.16)

Signed-off-by: dependabot[bot] <support@dependabot.com>

package.json

@@ -50,7 +50,7 @@
     "vue-loader": "11.3.4",
     "vue-router": "2.7.0",
     "vue-style-loader": "1.0.0",
-    "vue-template-compiler": "2.4.4",
+    "vue-template-compiler": "2.5.16",
     "vuex": "2.4.1",
     "webpack": "2.7.0"
   },