Bump rubocop-rails from 2.27.0 to 2.28.0

Bumps [rubocop-rails](https://github.com/rubocop/rubocop-rails) from 2.27.0 to 2.28.0.
- [Release notes](https://github.com/rubocop/rubocop-rails/releases)
- [Changelog](https://github.com/rubocop/rubocop-rails/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop-rails@v2.27.0...v2.28.0)

---
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

@@ -96,7 +96,7 @@ GEM
       erubi (>= 1.0.0)
       rack (>= 0.9.0)
       rouge (>= 1.0.0)
-    bigdecimal (3.1.8)
+    bigdecimal (3.1.9)
     bindata (2.5.0)
     bindex (0.8.1)
     binding_of_caller (1.0.1)
@@ -254,7 +254,7 @@ GEM
     listen (3.9.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
-    logger (1.6.3)
+    logger (1.6.4)
     loofah (2.23.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.12.0)
@@ -406,7 +406,7 @@ GEM
     rbtree (0.4.6)
     rdoc (6.9.1)
       psych (>= 4.0.0)
-    regexp_parser (2.9.3)
+    regexp_parser (2.10.0)
     reline (0.6.0)
       io-console (~> 0.5)
     rexml (3.3.9)
@@ -442,7 +442,7 @@ GEM
       rubocop-ast (>= 1.36.2, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 2.4.0, < 4.0)
-    rubocop-ast (1.36.2)
+    rubocop-ast (1.37.0)
       parser (>= 3.3.1.0)
     rubocop-capybara (2.21.0)
       rubocop (~> 1.41)
@@ -451,7 +451,7 @@ GEM
     rubocop-performance (1.23.0)
       rubocop (>= 1.48.1, < 2.0)
       rubocop-ast (>= 1.31.1, < 2.0)
-    rubocop-rails (2.27.0)
+    rubocop-rails (2.28.0)
       activesupport (>= 4.2.0)
       rack (>= 1.1)
       rubocop (>= 1.52.0, < 2.0)