build(deps-dev): Bump eslint from 7.19.0 to 7.20.0

Bumps [eslint](https://github.com/eslint/eslint) from 7.19.0 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@v7.19.0...v7.20.0)

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

Author: dependabot-preview[bot]

package-lock.json

@@ -22,7 +22,7 @@
     "chai": "~4.3.0",
     "codecov": "~3.8.0",
     "csv-parse": "~4.15.0",
-    "eslint": "~7.19.0",
+    "eslint": "~7.20.0",
     "mocha": "~8.3.0",
     "nyc": "~15.1.0",
     "prettier": "~2.2.0",