Fix docker build in new runner environment

[iamed2]

Looks like something changed in the runner environment between last month and now that made the way publish.py calls docker now fail.

Previous release: https://github.com/JuliaRegistries/TagBot/actions/runs/20823280704/job/59817502541
This release: https://github.com/JuliaRegistries/TagBot/actions/runs/22148173909/job/64047946944

For this reason, TagBot@v1 runs are now failing, as they attempt to find the image 1.24.4 but cannot.

[christopher-dG]

Ian fixed: 90f606b