build(deps): bump tailwindcss-ruby from 4.2.0 to 4.2.1 (#438)

Bumps [tailwindcss-ruby](https://github.com/flavorjones/tailwindcss-ruby) from 4.2.0 to 4.2.1.
- [Release notes](https://github.com/flavorjones/tailwindcss-ruby/releases)
- [Changelog](https://github.com/flavorjones/tailwindcss-ruby/blob/main/CHANGELOG.md)
- [Commits](flavorjones/tailwindcss-ruby@v4.2.0...v4.2.1)

---
updated-dependencies:
- dependency-name: tailwindcss-ruby
  dependency-version: 4.2.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Gemfile.lock

@@ -718,12 +718,12 @@ GEM
     tailwindcss-rails (4.4.0)
       railties (>= 7.0.0)
       tailwindcss-ruby (~> 4.0)
-    tailwindcss-ruby (4.2.0)
-    tailwindcss-ruby (4.2.0-aarch64-linux-gnu)
-    tailwindcss-ruby (4.2.0-aarch64-linux-musl)
-    tailwindcss-ruby (4.2.0-arm64-darwin)
-    tailwindcss-ruby (4.2.0-x86_64-linux-gnu)
-    tailwindcss-ruby (4.2.0-x86_64-linux-musl)
+    tailwindcss-ruby (4.2.1)
+    tailwindcss-ruby (4.2.1-aarch64-linux-gnu)
+    tailwindcss-ruby (4.2.1-aarch64-linux-musl)
+    tailwindcss-ruby (4.2.1-arm64-darwin)
+    tailwindcss-ruby (4.2.1-x86_64-linux-gnu)
+    tailwindcss-ruby (4.2.1-x86_64-linux-musl)
     thor (1.5.0)
     thruster (0.1.19)
     thruster (0.1.19-aarch64-linux)