Bump shoulda-matchers from 4.5.1 to 5.3.0

Bumps [shoulda-matchers](https://github.com/thoughtbot/shoulda-matchers) from 4.5.1 to 5.3.0.
- [Release notes](https://github.com/thoughtbot/shoulda-matchers/releases)
- [Changelog](https://github.com/thoughtbot/shoulda-matchers/blob/main/CHANGELOG.md)
- [Commits](thoughtbot/shoulda-matchers@v4.5.1...v5.3.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

Gemfile

@@ -100,7 +100,7 @@ group :test do
   gem 'selenium-webdriver'
   gem 'webdrivers'
   gem 'database_cleaner'
-  gem 'shoulda-matchers', '~> 4.5'
+  gem 'shoulda-matchers', '~> 5.3'
   gem 'simplecov',      require: false
   gem 'simplecov-lcov', require: false
 end

Gemfile.lock

@@ -225,7 +225,7 @@ GEM
     mini_magick (4.12.0)
     mini_mime (1.1.5)
     mini_portile2 (2.8.4)
-    minitest (5.19.0)
+    minitest (5.20.0)
     msgpack (1.7.2)
     multi_json (1.15.0)
     multi_xml (0.6.0)
@@ -417,8 +417,8 @@ GEM
       rexml (~> 3.2, >= 3.2.5)
       rubyzip (>= 1.2.2, < 3.0)
       websocket (~> 1.0)
-    shoulda-matchers (4.5.1)
-      activesupport (>= 4.2.0)
+    shoulda-matchers (5.3.0)
+      activesupport (>= 5.2.0)
     simple_form (5.2.0)
       actionpack (>= 5.2)
       activemodel (>= 5.2)
@@ -544,7 +544,7 @@ DEPENDENCIES
   rubocop-rspec
   sassc-rails
   selenium-webdriver
-  shoulda-matchers (~> 4.5)
+  shoulda-matchers (~> 5.3)
   simple_form
   simplecov
   simplecov-lcov