Bump rubocop from 1.37.1 to 1.38.0 (#2617)

Bumps [rubocop](https://github.com/rubocop/rubocop) from 1.37.1 to 1.38.0.
- [Release notes](https://github.com/rubocop/rubocop/releases)
- [Changelog](https://github.com/rubocop/rubocop/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rubocop/rubocop/compare/v1.37.1...v1.38.0)

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

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile

@@ -24,7 +24,7 @@ gem 'espeak-ruby', '>= 1.0.4' # Text-to-Voice
 gem 'rake', '>= 13.0'
 gem 'otr-activerecord', '>= 1.4.2'
 gem 'sqlite3'
-gem 'rubocop', '~> 1.37.1', require: false
+gem 'rubocop', '~> 1.38.0', require: false
 
 # Geolocation support
 group :geoip do

Gemfile.lock

@@ -165,7 +165,7 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.12.0)
     rspec-support (3.12.0)
-    rubocop (1.37.1)
+    rubocop (1.38.0)
       json (~> 2.3)
       parallel (~> 1.10)
       parser (>= 3.1.2.1)
@@ -288,7 +288,7 @@ DEPENDENCIES
   rdoc
   rest-client (>= 2.1.0)
   rspec
-  rubocop (~> 1.37.1)
+  rubocop (~> 1.38.0)
   rubyzip (>= 1.2.2)
   rushover
   selenium-webdriver