Update default timeout to 30s and upgrade GitHub Actions

Changelog for 0.2.2:

• PR #12 Fix GHA actions - removing set-output, upgrading Docker actions by @alexellis

Commits
f997bb9 Fix tag in publish job by @alexellis
beafee6 Fix tag in publish build to use REPO_OWNER by @alexellis
2e3c5dc Upgrade GitHub Actions by @alexellis
c6cc226 Move from 8s default timeout to 30s by @alexellis

Changes: 0.2.1...0.2.2

Generated by Derek