Bump eslint from 6.8.0 to 7.5.0 (#14454)

* Bump eslint from 6.8.0 to 7.5.0

Bumps [eslint](https://github.com/eslint/eslint) from 6.8.0 to 7.5.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](https://github.com/eslint/eslint/compare/v6.8.0...v7.5.0)

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

* Fix .codeclimate.yml

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Yamagishi Kazutoshi <ykzts@desire.sh>

.codeclimate.yml

@@ -27,7 +27,7 @@ plugins:
     enabled: true
   eslint:
     enabled: true
-    channel: eslint-6
+    channel: eslint-7
   rubocop:
     enabled: true
     channel: rubocop-0-82