Bump rubocop from 1.75.5 to 1.75.6

Bumps [rubocop](https://github.com/rubocop/rubocop) from 1.75.5 to 1.75.6.
- [Release notes](https://github.com/rubocop/rubocop/releases)
- [Changelog](https://github.com/rubocop/rubocop/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop@v1.75.5...v1.75.6)

---
updated-dependencies:
- dependency-name: rubocop
  dependency-version: 1.75.6
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

Gemfile.lock

@@ -53,8 +53,8 @@ GEM
     i18n (1.14.6)
       concurrent-ruby (~> 1.0)
     immutable-struct (2.4.1)
-    json (2.11.3)
-    language_server-protocol (3.17.0.4)
+    json (2.12.0)
+    language_server-protocol (3.17.0.5)
     lino (4.1.0)
       childprocess (~> 5.0.0)
       hamster (~> 3.0)
@@ -129,7 +129,7 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
     rspec-support (3.13.1)
-    rubocop (1.75.5)
+    rubocop (1.75.6)
       json (~> 2.3)
       language_server-protocol (~> 3.17.0.2)
       lint_roller (~> 1.1.0)