Update dependency eslint to v8

Signed-off-by: Renovate Bot <[email protected]>

Author: renovate-bot

package.json

@@ -47,7 +47,7 @@
     "babel-eslint": "^10.1.0",
     "babel-loader": "^8.2.2",
     "classnames": "^2.3.1",
-    "eslint": "^6.8.0",
+    "eslint": "^8.0.1",
     "eslint-config-airbnb": "^18.2.1",
     "eslint-loader": "^2.2.1",
     "eslint-plugin-import": "^2.25.2",