Migrate from Node.js 20 to Node.js 24

[marc-barry]

Summary

build-push-action (v2) uses node20 in its action.yml. GitHub has announced that Node.js 20 actions are deprecated and will be forced to run on Node.js 24 starting June 2, 2026.

Current behavior

Every workflow run that uses this action produces a warning annotation:

Node.js 20 actions are deprecated. The following actions are running on Node.js 20 and may not work as expected: 30c7116. Actions will be forced to run with Node.js 24 by default starting June 2nd, 2026.

Requested change

Update the runs.using field in action.yml from node20 to node24.

Upstream docker/build-push-action migrated to Node 24 in v6.18.0.

References

• GitHub blog: Deprecation of Node 20 on GitHub Actions runners
• Migrate from Node.js 20 to Node.js 24 setup-docker-builder#66

[MrBuBBLs]

This would be solved by #142 I think 😉