deps-dev: Bump rubocop from 1.63.5 to 1.64.0 (#723)

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

Gemfile

@@ -16,7 +16,7 @@ group :development do
   gem "debug", "~> 1.9"
   gem "rake", "~> 13.2"
   gem "rspec", "~> 3.13"
-  gem "rubocop", "~> 1.63"
+  gem "rubocop", "~> 1.64"
   gem "rubocop-performance", "~> 1.21"
   gem "rubocop-rake", "~> 0.6.0"
   gem "rubocop-rspec", "~> 2.29"

Gemfile.lock

@@ -167,13 +167,13 @@ GEM
     psych (5.1.2)
       stringio
     public_suffix (5.0.5)
-    racc (1.7.3)
+    racc (1.8.0)
     rainbow (3.1.1)
     rake (13.2.1)
     rbs (2.8.4)
     rdoc (6.6.3.1)
       psych (>= 4.0.0)
-    regexp_parser (2.9.0)
+    regexp_parser (2.9.2)
     reline (0.5.0)
       io-console (~> 0.5)
     representable (3.2.0)
@@ -199,7 +199,7 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
     rspec-support (3.13.1)
-    rubocop (1.63.5)
+    rubocop (1.64.0)
       json (~> 2.3)
       language_server-protocol (>= 3.17.0)
       parallel (~> 1.10)
@@ -296,7 +296,7 @@ DEPENDENCIES
   debug (~> 1.9)
   rake (~> 13.2)
   rspec (~> 3.13)
-  rubocop (~> 1.63)
+  rubocop (~> 1.64)
   rubocop-performance (~> 1.21)
   rubocop-rake (~> 0.6.0)
   rubocop-rspec (~> 2.29)