Bump rubocop-rspec from 2.19.0 to 2.20.0

Bumps [rubocop-rspec](https://github.com/rubocop/rubocop-rspec) from 2.19.0 to 2.20.0.
- [Release notes](https://github.com/rubocop/rubocop-rspec/releases)
- [Changelog](https://github.com/rubocop/rubocop-rspec/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop-rspec@v2.19.0...v2.20.0)

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

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

Gemfile.lock

@@ -156,7 +156,7 @@ GEM
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
     orm_adapter (0.5.0)
-    parallel (1.22.1)
+    parallel (1.23.0)
     parser (3.2.2.0)
       ast (~> 2.4.1)
     pg (1.4.6)
@@ -209,7 +209,7 @@ GEM
       kwalify (~> 0.7.0)
       parser (~> 3.2.0)
       rainbow (>= 2.0, < 4.0)
-    regexp_parser (2.7.0)
+    regexp_parser (2.8.0)
     request_store (1.5.0)
       rack (>= 1.4)
     responders (3.1.0)
@@ -251,7 +251,7 @@ GEM
       activesupport (>= 4.2.0)
       rack (>= 1.1)
       rubocop (>= 1.33.0, < 2.0)
-    rubocop-rspec (2.19.0)
+    rubocop-rspec (2.20.0)
       rubocop (~> 1.33)
       rubocop-capybara (~> 2.17)
     ruby-progressbar (1.13.0)