Bump rubocop-rspec from 3.0.5 to 3.1.0 in the ruby-dependencies group (heroku#1653)

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


Updates `rubocop-rspec` from 3.0.5 to 3.1.0
- [Release notes](https://github.com/rubocop/rubocop-rspec/releases)
- [Changelog](https://github.com/rubocop/rubocop-rspec/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop-rspec@v3.0.5...v3.1.0)

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

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

Author: dependabot[bot]

Gemfile.lock

@@ -59,7 +59,7 @@ GEM
       unicode-display_width (>= 2.4.0, < 3.0)
     rubocop-ast (1.32.3)
       parser (>= 3.3.1.0)
-    rubocop-rspec (3.0.5)
+    rubocop-rspec (3.1.0)
       rubocop (~> 1.61)
     ruby-progressbar (1.13.0)
     thor (1.3.2)