Pin pytest <8.0.0

[valeriupredoi]

Description

new pytest=8.0.0 pulls in a very old pytest-metadata (2.0.0) while conflicting with the newer version (3.0.0, that holds the env vars that pytest is looking for), see https://github.com/conda-forge/pytest-feedstock/issues/170 for more details; I'll try help at the pytest feedstock, but in the meantime, we should pin pytest to less than 8.0.0 (also a good idea for now, since the new version seems to be rather buggy) - reason for this is pytest-metadat has a hard pin on pytest<8 see https://github.com/conda-forge/pytest-metadata-feedstock/blob/main/recipe/meta.yaml

• Closes #3513

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[bouweandela]

Would it make sense to instead pin pytest-metadata to >= 3 if that is actually what we need?

[valeriupredoi]

yes, that may be another (probably more sound) option (though usually one pins the more important package first, pytest-metadata being just a plugin, though a pesky one here) - but, in the meantime, maybe this will go though fast enough for us not to pin anything https://github.com/conda-forge/pytest-metadata-feedstock/pull/15

[valeriupredoi]

https://github.com/conda-forge/pytest-metadata-feedstock/pull/15 just got merged so that should fix all aour problems - gonna close (for now, surely forever)