Update dependency eslint-plugin-import to v2.20.0

Author: renovate-bot

client/package-lock.json

@@ -38,7 +38,7 @@
     "dotenv": "8.2.0",
     "eslint": "6.8.0",
     "eslint-config-airbnb": "18.0.1",
-    "eslint-plugin-import": "2.18.2",
+    "eslint-plugin-import": "2.20.0",
     "eslint-plugin-jest": "23.3.0",
     "eslint-plugin-jsx-a11y": "6.2.3",
     "eslint-plugin-react": "7.17.0",