chore(deps-dev): bump eslint from 6.6.0 to 7.3.1

Bumps [eslint](https://github.com/eslint/eslint) from 6.6.0 to 7.3.1.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](eslint/eslint@v6.6.0...v7.3.1)

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

Author: dependabot[bot]

package.json

@@ -21,7 +21,7 @@
     "chai": "^4.2.0",
     "cli-ux": "^5.1.0",
     "conventional-changelog-cli": "^2.0.12",
-    "eslint": "^6.6.0",
+    "eslint": "^7.3.1",
     "eslint-config-oclif": "^3.1.0",
     "eslint-config-oclif-typescript": "^0.1.0",
     "fancy-test": "^1.4.3",