Upgrade to jco 1.3.0.

Author: whitequark

test/yowasp_runtime_test/package.json

@@ -7,7 +7,7 @@
         "@yowasp/runtime": "file:../../"
     },
     "devDependencies": {
-        "@bytecodealliance/jco": "git://github.com/bytecodealliance/jco#generator"
+        "@bytecodealliance/jco": "1.3.0"
     },
     "scripts": {
         "pack": "yowasp-pack-resources gen/resources.js gen share",