Add new HighLine version

This commit adds a new version of the HighLine gem (3.0.1) to
agent-runtime-main while retaining the previous version (2.1.0) as the
default.

Author: mhashizume

configs/components/rubygem-highline.rb

@@ -1,6 +1,15 @@
 component 'rubygem-highline' do |pkg, settings, _platform|
-  pkg.version '2.1.0'
-  pkg.md5sum '4209083bda845d47dcc05b7ab23f25fd'
+  version = settings[:rubygem_highline_version] || '2.1.0'
+  pkg.version version
+
+  case version
+  when '2.1.0'
+    pkg.md5sum '4209083bda845d47dcc05b7ab23f25fd'
+  when '3.0.1'
+    pkg.sha256sum 'ca18b218fd581b1fae832f89bfeaf2b34d3a93429c44fd4411042ffce286f009'
+  else
+    raise "rubygem-highline version #{version} has not been configured; Cannot continue."
+  end
 
   instance_eval File.read('configs/components/_base-rubygem.rb')
 

configs/projects/agent-runtime-main.rb

@@ -3,6 +3,7 @@
   # Set preferred component versions if they differ from defaults:
   proj.setting :ruby_version, '3.2.3'
   proj.setting :rubygem_deep_merge_version, '1.2.2'
+  proj.setting :rubygem_highline_version, '3.0.1'
   proj.setting :rubygem_hocon_version, '1.4.0'
 
   # Solaris and AIX depend on libedit which breaks augeas compliation starting with 1.13.0