Bump rubocop-rspec from 3.8.0 to 3.9.0 (#48)

Bumps [rubocop-rspec](https://github.com/rubocop/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:production
  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>

Author: dependabot[bot]

Gemfile.lock

@@ -38,10 +38,10 @@ GEM
       rubocop-ast (>= 1.48.0, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 2.4.0, < 4.0)
-    rubocop-ast (1.48.0)
+    rubocop-ast (1.49.0)
       parser (>= 3.3.7.2)
-      prism (~> 1.4)
-    rubocop-rspec (3.8.0)
+      prism (~> 1.7)
+    rubocop-rspec (3.9.0)
       lint_roller (~> 1.1)
       rubocop (~> 1.81)
     ruby-progressbar (1.13.0)