Validate package dependencies using pyodide venv #435
Description
The runtime dependencies we set in our meta.yaml file are sometimes set incorrectly or don't properly reflect package updates. For example, if a package is updated and new dependencies are added, reviewers or contributors can easily miss them.
One workaround would be trying to install the package after building it using the dependency resolver, which pip provides. We already support installing packages with pip through pyodide venv, so installing package through pyodide venv can help detect these kinds of issues earlier.
One concern is that this would increase the test time, as we'll need to run pyodide venv for each package...