Add workflow to automatically create a release

release.rb

@@ -0,0 +1,17 @@
+require 'json'
+
+def run(command_line)
+  puts "$ #{command_line}"
+  output = `#{command_line}`
+  puts output
+  raise $?.inspect unless $?.success?
+  output
+end
+
+latest_release_tag = run 'gh release view --json tagName'
+latest_release_tag = JSON.load(latest_release_tag).fetch('tagName')
+
+raise latest_release_tag unless latest_release_tag =~ /\Av(\d+).(\d+).(\d+)\z/
+tag = "v#{$1}.#{Integer($2)+1}.0"
+
+run "gh release create --generate-notes --latest #{tag}"