device or resource busy

[jcollineswitio]

Describe the bug
A clear and concise description of what the bug is.
When chaining call I get error message
Error: device or resource busy: device or resource busy {stack: 'Error: device or resource busy: device or resource busy', message: 'device or resource busy: device or resource busy'}
To Reproduce
Describe how the node-rfc is installed, like locally or globally and using npm install or build from source.
Local Installation using npm install version 3.3.1
Describe steps to reproduce the behavior, including the test script.
Execute node index.js
content of the script:
`const noderfc = require("node-rfc");

const client = new noderfc.Client({ dest: "DH4" });

(async () => {
try {

    await client.open();

    let select = {
        WITH_USERNAME: 'X'
    }

    const users = await client.call("BAPI_USER_GETLIST", select);
    users.USERLIST.forEach(async user => {
        select = {
            USERNAME: user.USERNAME
        }
        try {
            let userDetails = await client.call("BAPI_USER_GET_DETAIL", select);

            console.log(user.USERNAME, userDetails);
        } catch (err) {
            console.log(err);
        }
    });

} catch (err) {

    console.error(err);
}

})();
`
Environment
{
platform: { name: 'win32', arch: 'x64', release: '10.0.22631' },
env: {
SAPNWRFC_HOME: 'C:\nwrfcsdk',
RFC_INI: '',
nwrfcsdk_lib_on_path: true
},
versions: {
node: '21.1.0',
acorn: '8.10.0',
ada: '2.7.2',
ares: '1.20.1',
base64: '0.5.0',
brotli: '1.0.9',
cjs_module_lexer: '1.2.2',
cldr: '43.1',
icu: '73.2',
llhttp: '9.1.2',
modules: '120',
napi: '9',
nghttp2: '1.57.0',
nghttp3: '0.7.0',
ngtcp2: '0.8.1',
openssl: '3.0.10+quic',
simdutf: '3.2.18',
tz: '2023c',
undici: '5.26.4',
unicode: '15.0',
uv: '1.46.0',
uvwasi: '0.0.19',
v8: '11.8.172.15-node.14',
zlib: '1.2.13.1-motley'
},
noderfc: {
version: '3.3.1',
nwrfcsdk: { major: 7, minor: 53, patchLevel: 1116 }
}
}

Additional context
communication with S/4HANA System