Wrong type for plugin id in qdt export

[nicogodet]

{
    "$schema": "https://raw.githubusercontent.com/qgis-deployment/qgis-deployment-toolbelt-cli/main/docs/schemas/profile/qgis_profile.json",
    "name": "name",
    "folder_name": "folder_name",
    "description": "My desc",
    "email": "[email protected]",
    "icon": "images/icon_shortcut.ico",
    "splash": "images/splash.png",
    "qgisMinimumVersion": "3.34.1",
    "qgisMaximumVersion": "3.99.99",
    "version": "0.1.0",
    "plugins": [
        {
            "name": "Layers menu from project",
            "folder_name": "menu_from_project",
            "official_repository": true,
            "plugin_id": "43",
            "version": "2.2.1"
        }
    ]
}

Plugin_id should be an int instead of string to comply with
https://github.com/qgis-deployment/qgis-deployment-toolbelt-cli/blob/c4245b1abe0d62977b295f2fa77ba8db8499a270/docs/schemas/profile/qgis_plugin.json#L24-L26

[kannes]

@Guts / @jmkerloch this is one for you :)