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f8aea71f - chore: refactor ingest unit test to run in it's own CI step (#2190)

chore: refactor ingest unit test to run in it's own CI step (#2190) ### Description Currently the ingest unit tests are running in both the source and destination ingest steps. This PR moved it out into it's own step that can run on a more basic runner since it doesn't require multiple cores/cpus for parallelization. Further optimizations: * Added the changelog step as a dependency for the ingest tests to avoid running them (fail fast) of the pipeline has already failed due to the changelog not being updated. * The cache was never actually being saved if it needed to be recreated, a save job was added at the end of each custom action