Bump rubocop from 1.49.0 to 1.51.0 in /dependencies (#4192)

Bumps [rubocop](https://github.com/rubocop/rubocop) from 1.49.0 to 1.51.0.
- [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/v1.49.0...v1.51.0)

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

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

dependencies/Gemfile

@@ -4,7 +4,7 @@ source "https://rubygems.org"
 
 git_source(:github) { |repo_name| "https://github.com/#{repo_name}" }
 
-gem "rubocop", "~> 1.49.0"
+gem "rubocop", "~> 1.51.0"
 gem "rubocop-github", "~> 0.20.0"
 gem "rubocop-minitest", "~> 0.30.0"
 gem "rubocop-performance", "~>1.18.0"

dependencies/Gemfile.lock

@@ -19,7 +19,7 @@ GEM
     rainbow (3.1.1)
     regexp_parser (2.8.0)
     rexml (3.2.5)
-    rubocop (1.49.0)
+    rubocop (1.51.0)
       json (~> 2.3)
       parallel (~> 1.10)
       parser (>= 3.2.0.0)
@@ -60,7 +60,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  rubocop (~> 1.49.0)
+  rubocop (~> 1.51.0)
   rubocop-github (~> 0.20.0)
   rubocop-minitest (~> 0.30.0)
   rubocop-performance (~> 1.18.0)