build(deps-dev): 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] <[email protected]>

Gemfile.lock

@@ -35,7 +35,7 @@ GEM
     erubi (1.13.0)
     i18n (1.14.6)
       concurrent-ruby (~> 1.0)
-    json (2.7.2)
+    json (2.7.4)
     language_server-protocol (3.17.0.3)
     loofah (2.22.0)
       crass (~> 1.0.2)
@@ -53,7 +53,7 @@ GEM
       ast (~> 2.4.1)
       racc
     racc (1.8.1)
-    rack (3.1.7)
+    rack (3.1.8)
     rails-dom-testing (2.2.0)
       activesupport (>= 5.0.0)
       minitest
@@ -96,7 +96,7 @@ 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)