Update launchy requirement from ~> 2.5 to ~> 3.0

Updates the requirements on [launchy](https://github.com/copiousfreetime/launchy) to permit the latest version.
- [Changelog](https://github.com/copiousfreetime/launchy/blob/main/HISTORY.md)
- [Commits](copiousfreetime/launchy@v2.5.0...v3.0.1)

---
updated-dependencies:
- dependency-name: launchy
  dependency-type: direct:production
...

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

Gemfile

@@ -5,7 +5,7 @@ source "https://rubygems.org"
 gem "byebug", "~> 11.1", platforms: %i[mri mingw x64_mingw]
 gem "chunky_png", "~> 1.4"
 gem "image_size", "~> 3.0"
-gem "launchy", "~> 2.5"
+gem "launchy", "~> 3.0"
 gem "pdf-reader", "~> 2.5"
 gem "puma", "~> 4.3"
 gem "rake", "~> 13.0"