build(deps-dev): bump rubocop-rspec in the rubocop group

Bumps the rubocop group with 1 update: [rubocop-rspec](https://github.com/rubocop/rubocop-rspec).


Updates `rubocop-rspec` from 3.8.0 to 3.9.0
- [Release notes](https://github.com/rubocop/rubocop-rspec/releases)
- [Changelog](https://github.com/rubocop/rubocop-rspec/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop-rspec@v3.8.0...v3.9.0)

---
updated-dependencies:
- dependency-name: rubocop-rspec
  dependency-version: 3.9.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: rubocop
...

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

Author: dependabot[bot]

Gemfile

@@ -69,7 +69,7 @@ group :development, :test do
   gem 'rubocop', '~> 1.82.1'
   gem 'rubocop-performance', '~> 1.26.1'
   gem 'rubocop-rails', '~> 2.34.3'
-  gem 'rubocop-rspec', '~> 3.8.0'
+  gem 'rubocop-rspec', '~> 3.9.0'
   gem 'rubocop-rspec_rails', '~> 2.32.0'
   gem 'brakeman', '~> 7.1.2'
 end

Gemfile.lock

@@ -367,7 +367,7 @@ GEM
       rack (>= 1.1)
       rubocop (>= 1.75.0, < 2.0)
       rubocop-ast (>= 1.44.0, < 2.0)
-    rubocop-rspec (3.8.0)
+    rubocop-rspec (3.9.0)
       lint_roller (~> 1.1)
       rubocop (~> 1.81)
     rubocop-rspec_rails (2.32.0)
@@ -460,7 +460,7 @@ DEPENDENCIES
   rubocop (~> 1.82.1)
   rubocop-performance (~> 1.26.1)
   rubocop-rails (~> 2.34.3)
-  rubocop-rspec (~> 3.8.0)
+  rubocop-rspec (~> 3.9.0)
   rubocop-rspec_rails (~> 2.32.0)
   simplecov (~> 0.22.0, >= 0.16.1)
   solid_queue (~> 1.2.4)