Can not query users in Keycloak return 403

Question

I am using Keycloak 20.0.5, and for some reason API call to /admin/realms/my-realm/users/ return 403. I have added all roles to my client, my configurations is as follow

Custom client

Client roles, I have added all available roles just to test

My JS admin client code

import KcAdminClient from '@keycloak/keycloak-admin-client';

(async() => {
    const kcAdminClient = new KcAdminClient();
    kcAdminClient.setConfig({
        baseUrl: 'http://localhost:8080,
        realmName: 'my-realm',
    });

    // Authorize with username / password
    await kcAdminClient.auth({
        clientSecret: 'xxx',
        grantType: 'client_credentials',
        clientId: 'management-client',
    });

    // List all users
    try {
        const users = await kcAdminClient.users.find();

        console.log(users);
    } catch (error) {
        console.log(error.message);
    }
})();

It returns 403 error, even if I use Postman to get the token from /realms/my-realm/protocol/openid-connect/token and use the token returned from that API to /admin/realms/my-realm/users/ it still return 403