chore(deps-dev): bump eslint from 6.1.0 to 6.7.2 (#103)

Bumps [eslint](https://github.com/eslint/eslint) from 6.1.0 to 6.7.2.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](eslint/eslint@v6.1.0...v6.7.2)

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

Author: dependabot-preview[bot]

package.json

@@ -57,7 +57,7 @@
     "ember-source": "^3.15.0",
     "ember-source-channel-url": "^2.0.1",
     "ember-try": "^1.4.0",
-    "eslint": "^6.1.0",
+    "eslint": "^6.7.2",
     "loader.js": "^4.2.3",
     "qunit-dom": "^0.9.2"
   },