Upgrade: Bump eslint from 7.7.0 to 7.8.1 (#172)

Bumps [eslint](https://github.com/eslint/eslint) from 7.7.0 to 7.8.1.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](eslint/eslint@v7.7.0...v7.8.1)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

package.json

@@ -37,7 +37,7 @@
     "chai": "^4.2.0",
     "deep-equal": "^2.0.3",
     "dockerlint": "^0.3.9",
-    "eslint": "^7.7.0",
+    "eslint": "^7.8.1",
     "jsonlint": "^1.6.3",
     "markdownlint-cli": "^0.23.2",
     "mocha": "^8.1.3",