Updates the requirements on rack to permit the latest version

[pinecat]

Hello,

There is a depandabot pull request (#3) to bump the rack requirements, so that lanyon doesn't crash out when using the latest (major) rack version (v4 at time of writing this). I was wondering if this could be pulled and uploaded to https://rubygems.org.

I also have my own diff, which additionally bumps the version. I've included it below for convenience/clarity. I have been testing with jekyll v4.3.4 and ruby v3.4.1. Everything is running smoothly (though, anyone feel free to chime in if that hasn't been the case for you). Thanks for your help!

p.s. It does seem like the tests are failing for the dependabot PR, but the logs are missing, so I am not sure what the cause is. If you'd like, I will create a PR with my diff and see if the tests are still failing. Thanks!

diff --git a/lanyon.gemspec b/lanyon.gemspec
index 9eadc11..0d2aecd 100644
--- a/lanyon.gemspec
+++ b/lanyon.gemspec
@@ -24,7 +24,7 @@ Gem::Specification.new do |s|
   s.required_ruby_version = ">= 3.1.0"
 
   s.add_dependency "jekyll", ">= 2.0"
-  s.add_dependency "rack", ">= 1.6", "< 3.0"
+  s.add_dependency "rack", ">= 1.6", "< 4.0"
 
   s.require_paths = ["lib"]
 
diff --git a/lib/lanyon/version.rb b/lib/lanyon/version.rb
index 190cdfe..57edbfd 100644
--- a/lib/lanyon/version.rb
+++ b/lib/lanyon/version.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
 module Lanyon
-  VERSION  = "0.5.0"
-  DATE     = "2024-01-05"
+  VERSION  = "0.5.1"
+  DATE     = "2024-11-27"
 end