chore: update devDependencies

package.json

@@ -128,13 +128,13 @@
     "three": "^0.99.0",
     "uglifyjs-webpack-plugin": "1.3.0",
     "url-loader": "1.1.1",
-    "vue": "2.5.17",
+    "vue": "^2.6.10",
     "vue-i18n": "8.1.0",
     "vue-jest": "2.6.0",
-    "vue-loader": "15.4.0",
+    "vue-loader": "^15.7.0",
     "vue-router": "^3.0.2",
-    "vue-style-loader": "4.1.2",
-    "vue-template-compiler": "2.5.17",
+    "vue-style-loader": "^4.1.2",
+    "vue-template-compiler": "^2.6.10",
     "vueg": "1.3.4",
     "webpack": "4.25.0",
     "webpack-cli": "3.1.0",