chore(deps): update dependency eslint to v7

Author: renovate-bot

package.json

@@ -30,7 +30,7 @@
     "atom-package-deps": "5.1.0"
   },
   "devDependencies": {
-    "eslint": "6.8.0",
+    "eslint": "7.14.0",
     "eslint-config-airbnb-base": "14.0.0",
     "eslint-plugin-import": "2.20.1",
     "jasmine-fix": "1.3.1"