fix(preset): plugin invoke order don't sort by unicode order

[AmyFoxFN]

Hi,

Thanks for the new cli, it's really easy to use!

However, this days, when I update to v3.0.4. There is a problem of the invoke order of my preset plugins.

For example, here is the plugins config of preset.json:

{
    "plugins": {
        "@vue/cli-plugin-babel": {},
        "@dd/vue-cli-plugin-need-modify-based-babel": {
            "prompts": true
        }
    }
}

I need to invoke the @dd/vue-cli-plugin-need-modify-based-babel behind the @vue/cli-plugin-babel. But the sortObject function in v3.0.4 would change my intended order to the sort of Unicode code point value. And I think do not sort by unicode is more appropriate for preset.plugin.

[AmyFoxFN]

Is there anyone could help to handle this fix PR? @sodatea

[dolymood]

+1