Bump rubocop-rspec from 2.14.2 to 2.15.0

Bumps [rubocop-rspec](https://github.com/rubocop/rubocop-rspec) from 2.14.2 to 2.15.0.
- [Release notes](https://github.com/rubocop/rubocop-rspec/releases)
- [Changelog](https://github.com/rubocop/rubocop-rspec/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop-rspec@v2.14.2...v2.15.0)

---
updated-dependencies:
- dependency-name: rubocop-rspec
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Gemfile.lock

@@ -271,7 +271,7 @@ GEM
     reline (0.3.1)
       io-console (~> 0.5)
     rexml (3.2.5)
-    rubocop (1.37.1)
+    rubocop (1.38.0)
       json (~> 2.3)
       parallel (~> 1.10)
       parser (>= 3.1.2.1)
@@ -283,7 +283,7 @@ GEM
       unicode-display_width (>= 1.4.0, < 3.0)
     rubocop-ast (1.23.0)
       parser (>= 3.1.1.0)
-    rubocop-rspec (2.14.2)
+    rubocop-rspec (2.15.0)
       rubocop (~> 1.33)
     rubocop-shopify (2.10.1)
       rubocop (~> 1.35)