Sync auth provider settings with Strapi config-sync plugin

[sidemt]

Currently, we have to set Auth0 Provider configration manually in the admin panel:

Include this config in the strapi config sync if possible.

We already use this plugin to sync user role and permission settings. It seems we have to set up a custom type to add Provider related settings.

See #89 for the background of this issue.

[sidemt]

Removing "core-store.plugin_users-permissions_grant" from excludedConfig array may solve the issue

  "config-sync": {
    enabled: true,
    config: {
      syncDir: "config/sync/",
      minify: false,
      soft: false,
      importOnBootstrap: false,
      customTypes: [],
      excludedTypes: [],
      excludedConfig: [
        // "core-store.plugin_users-permissions_grant", // remove this line
        "core-store.plugin_upload_metrics",
        "core-store.strapi_content_types_schema",
        "core-store.ee_information",
      ],
    },
  },

Update: But we shouldn't store sensitive information in the code or Docker image so we might have to use other approach.