Bump rubocop-rails from 2.26.2 to 2.27.0

Bumps [rubocop-rails](https://github.com/rubocop/rubocop-rails) from 2.26.2 to 2.27.0.
- [Release notes](https://github.com/rubocop/rubocop-rails/releases)
- [Changelog](https://github.com/rubocop/rubocop-rails/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop-rails@v2.26.2...v2.27.0)

---
updated-dependencies:
- dependency-name: rubocop-rails
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Gemfile.lock

@@ -149,7 +149,7 @@ GEM
       actionview (>= 5.0.0)
       activesupport (>= 5.0.0)
     jmespath (1.6.2)
-    json (2.7.2)
+    json (2.7.4)
     json-schema (5.0.1)
       addressable (~> 2.8)
     jwt (2.9.3)
@@ -315,7 +315,7 @@ GEM
     rubocop-performance (1.22.1)
       rubocop (>= 1.48.1, < 2.0)
       rubocop-ast (>= 1.31.1, < 2.0)
-    rubocop-rails (2.26.2)
+    rubocop-rails (2.27.0)
       activesupport (>= 4.2.0)
       rack (>= 1.1)
       rubocop (>= 1.52.0, < 2.0)