use wasm-node to unlock builds for the linux/s390x architecture

[edlerd]

Done

• use wasm-node to unlock builds for the linux/s390x architecture, , which is not supported natively by rollup

QA

1. Run the LXD-UI:
   • On the demo server via the link posted by @webteam-app below. This is only available for PRs created by collaborators of the repo. Ask @lorumic or @edlerd for access.
   • With a local copy of this branch, run as described here.
2. Perform the following QA steps:
   • ensure ci is passing and spot check demo

[webteam-app]

Demo starting at https://lxd-ui-609.demos.haus

[mas-who]

Did some spot checks on demo server, LGTM.