fix: update dependency eslint-plugin-import to ^2.18.2 (#16867)

Author: renovate[bot]

packages/gatsby/package.json

@@ -56,7 +56,7 @@
     "eslint-loader": "^2.2.1",
     "eslint-plugin-flowtype": "^2.46.1",
     "eslint-plugin-graphql": "^3.0.3",
-    "eslint-plugin-import": "^2.9.0",
+    "eslint-plugin-import": "^2.18.2",
     "eslint-plugin-jsx-a11y": "^6.0.3",
     "eslint-plugin-react": "^7.8.2",
     "event-source-polyfill": "^1.0.5",