Bump sprockets from 4.2.1 to 4.2.2

Bumps [sprockets](https://github.com/rails/sprockets) from 4.2.1 to 4.2.2.
- [Release notes](https://github.com/rails/sprockets/releases)
- [Changelog](https://github.com/rails/sprockets/blob/main/CHANGELOG.md)
- [Commits](https://github.com/rails/sprockets/compare/v4.2.1...v4.2.2)

---
updated-dependencies:
- dependency-name: sprockets
  dependency-version: 4.2.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Gemfile

@@ -53,7 +53,7 @@ gem "sassc-rails", "~> 2.1.2"
 gem "savon", "~> 2.15.1"
 gem "sitemap_generator", "~> 6.3.0"
 gem "social-share-button", "~> 1.2.4"
-gem "sprockets", "~> 4.2.1"
+gem "sprockets", "~> 4.2.2"
 gem "sprockets-rails", "~> 3.5.2", require: "sprockets/railtie"
 gem "turbolinks", "~> 5.2.1"
 gem "turnout", "~> 2.5.0"