Rename rollup.config.js -> rollup.config.mjs in ruby-head-wasm-wasi

Author: kateinoigakukun

packages/npm-packages/ruby-head-wasm-wasi/build-package.sh

@@ -23,10 +23,6 @@ rm -rf "$dist_dir"
   ./build-package.sh "$ruby_root"
 )
 set -ex
-(
-  cd "$package_dir" && \
-  npm ci && \
-  npx rollup -c rollup.config.js
-)
+(cd "$package_dir" && npm run build)
 cp -R "$base_package_dir/dist/." "$dist_dir"
-$base_package_dir/tools/pack-ruby-wasm.sh "$ruby_root" "$dist_dir"
+$base_package_dir/tools/pack-ruby-wasm.sh "$ruby_root" "$dist_dir"

packages/npm-packages/ruby-head-wasm-wasi/package.json

@@ -11,7 +11,8 @@
     "README.md"
   ],
   "scripts": {
-    "test": "cd ../ruby-wasm-wasi && npm test"
+    "test": "cd ../ruby-wasm-wasi && npm test",
+    "build": "rollup -c rollup.config.mjs"
   },
   "repository": "https://github.com/ruby/ruby.wasm",
   "homepage": "https://github.com/ruby/ruby.wasm/tree/main/packages/npm-packages/ruby-head-wasm-wasi",