Recently a commit from `open_pdks` https://github.com/RTimothyEdwards/open_pdks/commit/1683283a55ace46a24193f37b39cf271a5ab1808 broke one of the backward dependencies: https://anaconda.org/LiteX-Hub/openlane, causing some of the notebooks at https://github.com/chipsalliance/silicon-notebooks/issues/59 to be broken. We could leverage `Downstream tests` https://docs.conda.io/projects/conda-build/en/latest/resources/define-metadata.html#downstream-tests to ensure that we don't publish a new package that breaks its reverse dependencies.