chore(deps-dev): Bump rubocop from 1.59.0 to 1.60.0

Bumps [rubocop](https://github.com/rubocop/rubocop) from 1.59.0 to 1.60.0.
- [Release notes](https://github.com/rubocop/rubocop/releases)
- [Changelog](https://github.com/rubocop/rubocop/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop@v1.59.0...v1.60.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

Gemfile.lock

@@ -148,7 +148,7 @@ GEM
     padrino-support (0.15.2)
     pairing_heap (0.3.0)
     parallel (1.24.0)
-    parser (3.2.2.4)
+    parser (3.3.0.3)
       ast (~> 2.4.1)
       racc
     parslet (2.0.0)
@@ -170,7 +170,7 @@ GEM
       ffi (~> 1.0)
     rdoc (6.6.2)
       psych (>= 4.0.0)
-    regexp_parser (2.8.3)
+    regexp_parser (2.9.0)
     reline (0.4.1)
       io-console (~> 0.5)
     rexml (3.2.6)
@@ -179,11 +179,11 @@ GEM
       rexml (~> 3.2, >= 3.2.4)
       stream (~> 0.5.3)
     rouge (3.30.0)
-    rubocop (1.59.0)
+    rubocop (1.60.0)
       json (~> 2.3)
       language_server-protocol (>= 3.17.0)
       parallel (~> 1.10)
-      parser (>= 3.2.2.4)
+      parser (>= 3.3.0.2)
       rainbow (>= 2.2.2, < 4.0)
       regexp_parser (>= 1.8, < 3.0)
       rexml (>= 3.2.5, < 4.0)