Bump shoulda-matchers from 6.2.0 to 6.3.1

Bumps [shoulda-matchers](https://github.com/thoughtbot/shoulda-matchers) from 6.2.0 to 6.3.1.
- [Release notes](https://github.com/thoughtbot/shoulda-matchers/releases)
- [Changelog](https://github.com/thoughtbot/shoulda-matchers/blob/main/CHANGELOG.md)
- [Commits](thoughtbot/shoulda-matchers@v6.2.0...v6.3.1)

---
updated-dependencies:
- dependency-name: shoulda-matchers
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Gemfile

@@ -112,7 +112,7 @@ group :test do
   gem 'simplecov'
   # Faker added 0.5 seconds to the test suite per call. Haikunator seems much faster for faking strings
   gem 'haikunator'
-  gem 'shoulda-matchers', '~> 6.2'
+  gem 'shoulda-matchers', '~> 6.3'
 
   gem 'json-schema', '~> 4.3.1'
   gem 'launchy'

Gemfile.lock

@@ -533,7 +533,7 @@ GEM
       rexml (~> 3.2, >= 3.2.5)
       rubyzip (>= 1.2.2, < 3.0)
       websocket (~> 1.0)
-    shoulda-matchers (6.2.0)
+    shoulda-matchers (6.3.1)
       activesupport (>= 5.2.0)
     sidekiq (7.3.0)
       concurrent-ruby (< 2)
@@ -688,7 +688,7 @@ DEPENDENCIES
   rubocop-rails
   sdoc
   selenium-webdriver
-  shoulda-matchers (~> 6.2)
+  shoulda-matchers (~> 6.3)
   sidekiq (~> 7.3)
   sidekiq-cron (~> 1.12)
   sidekiq-unique-jobs (~> 8.0)