Bump sprockets from 3.7.2 to 4.2.0

Bumps [sprockets](https://github.com/rails/sprockets) from 3.7.2 to 4.2.0.
- [Release notes](https://github.com/rails/sprockets/releases)
- [Changelog](https://github.com/rails/sprockets/blob/main/CHANGELOG.md)
- [Commits](rails/sprockets@v3.7.2...v4.2.0)

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

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

Gemfile

@@ -74,7 +74,7 @@ group :development, :test do
   gem 'rubocop-rails'
   gem 'rubocop-rspec'
   gem 'spring', '~>2.1.1' # remove constraint once on or past rails 5.2
-  gem 'sprockets', '~>3.7'
+  gem 'sprockets', '~>4.2'
   gem 'ten_years_rails'
 end
 

Gemfile.lock

@@ -323,7 +323,7 @@ GEM
       activesupport (>= 3.0.0)
     raabro (1.4.0)
     racc (1.6.1)
-    rack (2.2.4)
+    rack (2.2.6.1)
     rack-cors (1.1.1)
       rack (>= 2.0.0)
     rack-protection (2.2.2)
@@ -440,9 +440,9 @@ GEM
     spring (2.1.1)
     spring-commands-rspec (1.0.4)
       spring (>= 0.9.1)
-    sprockets (3.7.2)
+    sprockets (4.2.0)
       concurrent-ruby (~> 1.0)
-      rack (> 1, < 3)
+      rack (>= 2.2.4, < 4)
     sprockets-rails (3.4.2)
       actionpack (>= 5.2)
       activesupport (>= 5.2)
@@ -547,7 +547,7 @@ DEPENDENCIES
   sidekiq-unique-jobs
   spring (~> 2.1.1)
   spring-commands-rspec
-  sprockets (~> 3.7)
+  sprockets (~> 4.2)
   standby
   stringex (~> 2.8)
   strong_migrations