Bump eslint from 3.19.0 to 7.9.0

Bumps [eslint](https://github.com/eslint/eslint) from 3.19.0 to 7.9.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](https://github.com/eslint/eslint/compare/v3.19.0...v7.9.0)

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -33,7 +33,7 @@
   },
   "devDependencies": {
     "chai": "^3.5.0",
-    "eslint": "^3.0.1",
+    "eslint": "^7.9.0",
     "eslint-config-llama": "^3.0.0",
     "expect": "^1.20.2",
     "mocha": "^3.0.1"