Upgrade eslint

Author: aLLeXUs

frontend/package.json

@@ -26,10 +26,10 @@
     "@vue/cli-plugin-babel": "^4.3.1",
     "@vue/cli-plugin-eslint": "^4.3.1",
     "@vue/cli-service": "^4.3.1",
-    "@vue/eslint-config-airbnb": "^4.0.0",
-    "babel-eslint": "^10.0.1",
-    "eslint": "^5.8.0",
-    "eslint-plugin-vue": "^5.0.0",
+    "@vue/eslint-config-airbnb": "^5.0.2",
+    "babel-eslint": "^10.1.0",
+    "eslint": "^7.0.0",
+    "eslint-plugin-vue": "^6.2.2",
     "fibers": "^3.1.1",
     "sass": "^1.17.2",
     "sass-loader": "^7.1.0",