Bump rubocop-rspec from 3.8.0 to 3.9.0

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:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Gemfile.lock

@@ -55,10 +55,10 @@ GEM
       http (>= 4.3, < 6.0)
       maxmind-db (~> 1.4)
     parallel (1.27.0)
-    parser (3.3.10.0)
+    parser (3.3.10.1)
       ast (~> 2.4.1)
       racc
-    prism (1.7.0)
+    prism (1.8.0)
     public_suffix (7.0.0)
     racc (1.8.1)
     rainbow (3.1.1)
@@ -99,7 +99,7 @@ GEM
     rubocop-rake (0.7.1)
       lint_roller (~> 1.1)
       rubocop (>= 1.72.1)
-    rubocop-rspec (3.8.0)
+    rubocop-rspec (3.9.0)
       lint_roller (~> 1.1)
       rubocop (~> 1.81)
     rubocop-thread_safety (0.7.3)