Add a test with up to date dependencies & fix zarr-python v2 #2973
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Currently on the v2 branch the dependencies in the test are pinned in
requirements_*.txt
files at the root of the repository, and these pins are bumped by dependabot periodically (I think weekly?). This means when a new version of a dependency is released, there is a period where we don't test against it. This prevents us from catching issues such as in #2965.This PR adds a new workflow that creates a fresh conda environment, then pip installs
zarr-python
. This emulates how a user installs, and will automatically pick up the latest versions of dependencies.Hopefully this will initially fail, because it will pull in
numcodecs
0.16. Then I plan to introduce the (correct...) pin, and hopefully that will fix the new test.EDIT: everything seems to have worked, so I think this is good to review