Bump rubocop-rspec from 2.15.0 to 2.16.0

Bumps [rubocop-rspec](https://github.com/rubocop/rubocop-rspec) from 2.15.0 to 2.16.0.
- [Release notes](https://github.com/rubocop/rubocop-rspec/releases)
- [Changelog](https://github.com/rubocop/rubocop-rspec/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rubocop/rubocop-rspec/compare/v2.15.0...v2.16.0)

---
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

@@ -111,7 +111,7 @@ GEM
     jbuilder (2.11.5)
       actionview (>= 5.0.0)
       activesupport (>= 5.0.0)
-    json (2.6.2)
+    json (2.6.3)
     loofah (2.19.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
@@ -205,7 +205,7 @@ GEM
       rspec-mocks (~> 3.11)
       rspec-support (~> 3.11)
     rspec-support (3.12.0)
-    rubocop (1.39.0)
+    rubocop (1.40.0)
       json (~> 2.3)
       parallel (~> 1.10)
       parser (>= 3.1.2.1)
@@ -215,13 +215,13 @@ GEM
       rubocop-ast (>= 1.23.0, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 1.4.0, < 3.0)
-    rubocop-ast (1.23.0)
+    rubocop-ast (1.24.0)
       parser (>= 3.1.1.0)
     rubocop-rails (2.17.3)
       activesupport (>= 4.2.0)
       rack (>= 1.1)
       rubocop (>= 1.33.0, < 2.0)
-    rubocop-rspec (2.15.0)
+    rubocop-rspec (2.16.0)
       rubocop (~> 1.33)
     ruby-progressbar (1.11.0)
     ruby-vips (2.1.4)