Deprecation of Punycode Module in MJML 4

[Thinley24]

Description

Hi,

I'm currently using mjml-rails v4, which relies on MJML v4, and I've encountered a deprecation warning related to the punycode module in Node.js.

Issue

MJML 4 uses the deprecated punycode module, which leads to the following warning during execution

WARN -- Mjml: (node:46643) [DEP0040] DeprecationWarning: The punycode module is deprecated. Please use a userland alternative instead.

This issue has been previously reported in MJML's repository (#2930), but since MJML 4 is no longer receiving updates, this deprecation warning will persist for projects that rely on mjml-rails v4.

Would it be possible to provide an update or a workaround for mjml-rails users relying on MJML 4?
Any guidance on handling this issue would be appreciated.

Thanks!

[sighmon]

@Thinley24 Which specific versions of Node/mjml/mjml-rails are you seeing the warning?