ci: revert to ubuntu-22.04 for pipeline runner

mamba-org / micromamba-docker

Rapid builds of small Conda-based containers using micromamba.

https://micromamba-docker.readthedocs.io/

Apache License 2.0

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Closed wholtz closed 1 month ago

wholtz commented 1 month ago

Gets us an older appatainer version that may fix an issue with testing the alpine images.