Update eslint to v4.28.5

Author: renovate-bot

package-lock.json

@@ -40,8 +40,8 @@
     "@types/jest": "26.0.24",
     "@types/lodash.isplainobject": "4.0.6",
     "@types/lodash.mapvalues": "4.6.6",
-    "@typescript-eslint/eslint-plugin": "4.28.4",
-    "@typescript-eslint/parser": "4.28.4",
+    "@typescript-eslint/eslint-plugin": "4.28.5",
+    "@typescript-eslint/parser": "4.28.5",
     "@vue/test-utils": "1.2.2",
     "apollo-client": "2.6.10",
     "apollo-link": "1.2.14",