Bump rubocop from 1.63.5 to 1.64.0

Bumps [rubocop](https://github.com/rubocop/rubocop) from 1.63.5 to 1.64.0.
- [Release notes](https://github.com/rubocop/rubocop/releases)
- [Changelog](https://github.com/rubocop/rubocop/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop@v1.63.5...v1.64.0)

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

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

Gemfile.lock

@@ -58,10 +58,10 @@ GEM
       ast (~> 2.4.1)
       racc
     public_suffix (5.0.4)
-    racc (1.7.3)
+    racc (1.8.0)
     rainbow (3.1.1)
     rake (13.2.1)
-    regexp_parser (2.9.0)
+    regexp_parser (2.9.2)
     rexml (3.2.8)
       strscan (>= 3.0.9)
     rspec (3.13.0)
@@ -79,7 +79,7 @@ GEM
     rspec-support (3.13.0)
     rspec_junit_formatter (0.6.0)
       rspec-core (>= 2, < 4, != 2.12.0)
-    rubocop (1.63.5)
+    rubocop (1.64.0)
       json (~> 2.3)
       language_server-protocol (>= 3.17.0)
       parallel (~> 1.10)