Merge branch 'jc/maint-github-actions-update' into jc/github-actions-update

This contains an evil merge to tell the fuzz-smoke-test job to also use checkout@v4; the job has been added since the master track diverged from the maintenance track. * jc/maint-github-actions-update: GitHub Actions: update to github-script@v7 GitHub Actions: update to checkout@v4