Build and publish ruby-wasm-wasi on CI

The CI job was accidentally removed while I was working on the RubyGems
support.

Rakefile

@@ -41,6 +41,10 @@ NPM_PACKAGES = [
     ruby_version: "3.2",
     gemfile: "packages/npm-packages/ruby-wasm-wasi/Gemfile",
     target: "wasm32-unknown-wasi"
+  },
+  {
+    name: "ruby-wasm-wasi",
+    target: "wasm32-unknown-wasi"
   }
 ]
 

rakelib/packaging.rake

@@ -6,6 +6,8 @@ tools = {
 }
 
 def npm_pkg_build_command(pkg)
+  # Skip if the package does not require building ruby
+  return nil unless pkg[:ruby_version] && pkg[:target]
   [
     "bundle",
     "exec",
@@ -22,6 +24,7 @@ end
 
 def npm_pkg_rubies_cache_key(pkg)
   build_command = npm_pkg_build_command(pkg)
+  return nil unless build_command
   require "open3"
   cmd = build_command + ["--print-ruby-cache-key"]
   stdout, status = Open3.capture2(*cmd)
@@ -38,10 +41,13 @@ namespace :npm do
     pkg_dir = "#{Dir.pwd}/packages/npm-packages/#{pkg[:name]}"
 
     namespace pkg[:name] do
-      build_command = npm_pkg_build_command(pkg)
 
       desc "Build ruby for npm package #{pkg[:name]}"
       task "ruby" do
+        build_command = npm_pkg_build_command(pkg)
+        # Skip if the package does not require building ruby
+        next unless build_command
+
         env = {
           # Share ./build and ./rubies in the same workspace
           "RUBY_WASM_ROOT" => base_dir