Bump rubocop-rspec from 3.0.5 to 3.1.0 (#23)

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

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

Gemfile.lock

@@ -57,7 +57,7 @@ GEM
       parser (>= 3.3.1.0)
     rubocop-rake (0.6.0)
       rubocop (~> 1.0)
-    rubocop-rspec (3.0.5)
+    rubocop-rspec (3.1.0)
       rubocop (~> 1.61)
     ruby-progressbar (1.13.0)
     simplecov (0.22.0)
@@ -70,7 +70,7 @@ GEM
     simplecov-html (0.13.0)
     simplecov_json_formatter (0.1.4)
     thor (1.3.2)
-    unicode-display_width (2.5.0)
+    unicode-display_width (2.6.0)
     vcr (6.3.1)
       base64
     webmock (3.24.0)