Update dependency eslint to v8

Author: renovate[bot]

package.json

@@ -55,7 +55,7 @@
     "ember-source-channel-url": "3.0.0",
     "ember-template-lint": "4.12.0",
     "ember-try": "2.0.0",
-    "eslint": "7.32.0",
+    "eslint": "8.21.0",
     "eslint-config-prettier": "8.5.0",
     "eslint-plugin-ember": "10.6.1",
     "eslint-plugin-node": "11.1.0",