CI workflow improvement

[aradhakrishnanGFDL]

Proposing an enhanced test workflow with existing pytest suites.

Need job dependencies and sequences specified, such that conda package (or pip) is built before pytests are run.... or some version of this so that the pytests are always run on the current changes rather than the last stable release.

We also could have a dev and a stable conda release and use the former in the CI for a PR review.

[aradhakrishnanGFDL]

In addition to #8, we also need tests (pytests) that will be run with the conda package that is built as part of the workflow. @ilaflott points to fre-cli CI workflows which serve similar purposes and will be helpful to adapt them to fit the catalogbuilder land as well. So, we need meta.yaml changes to catalogbuilder such that pytests are run as part of build and publish. Specifically, using "commands" in meta.yml.

Reference https://github.com/NOAA-GFDL/fre-cli/blob/main/meta.yaml#L45-L63