build: bump rubocop from 1.81.1 to 1.81.6 (#358)

Bumps [rubocop](https://github.com/rubocop/rubocop) from 1.81.1 to 1.81.6.
- [Release notes](https://github.com/rubocop/rubocop/releases)
- [Changelog](https://github.com/rubocop/rubocop/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop@v1.81.1...v1.81.6)

---
updated-dependencies:
- dependency-name: rubocop
  dependency-version: 1.81.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

Gemfile.lock

@@ -37,7 +37,7 @@ GEM
     parser (3.3.9.0)
       ast (~> 2.4.1)
       racc
-    prism (1.5.1)
+    prism (1.6.0)
     racc (1.8.1)
     racc (1.8.1-java)
     rainbow (3.1.1)
@@ -62,7 +62,7 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
     rspec-support (3.13.6)
-    rubocop (1.81.1)
+    rubocop (1.81.6)
       json (~> 2.3)
       language_server-protocol (~> 3.17.0.2)
       lint_roller (~> 1.1.0)