Bump rubocop-rspec from 3.0.5 to 3.1.0

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]>

Gemfile.lock

@@ -569,7 +569,7 @@ 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)
     ruby-vips (2.2.2)
@@ -647,7 +647,7 @@ GEM
     uglifier (4.2.1)
       execjs (>= 0.3.0, < 3)
     unf (0.2.0)
-    unicode-display_width (2.5.0)
+    unicode-display_width (2.6.0)
     uri (0.13.1)
     virtus (2.0.0)
       axiom-types (~> 0.1)