chore(deps-dev): bump eslint from 7.18.0 to 7.20.0

Bumps [eslint](https://github.com/eslint/eslint) from 7.18.0 to 7.20.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](eslint/eslint@v7.18.0...v7.20.0)

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

package.json

@@ -58,7 +58,7 @@
     "@types/node": "^14.14.31",
     "@typescript-eslint/eslint-plugin": "^3.6.0",
     "@typescript-eslint/parser": "^3.6.0",
-    "eslint": "^7.18.0",
+    "eslint": "^7.20.0",
     "ts-node": "^9.1.1",
     "typescript": "^3.9.5"
   }