TST: Test xarray notebook

Pin importlib-metadata to 4.13.0, version >= 5.0.0 removed depreciated endpoint
used in Python 3.7.

Author: bnmajor

.github/workflows/notebook-test.yml

@@ -38,4 +38,5 @@ jobs:
           examples/integrations/itk/*.ipynb
           examples/integrations/MONAI/*.ipynb
           examples/integrations/vtk/*.ipynb
+          examples/integrations/xarray/*.ipynb
           examples/integrations/zarr/*.ipynb

pyproject.toml

@@ -38,6 +38,7 @@ dependencies = [
     "itkwasm >= 1.0b1",
     "imjoy-rpc >= 0.5.16",
     "imjoy-utils >= 0.1.2",
+    "importlib-metadata == 4.13.0 ; python_version == '3.7'",
     "ngff-zarr[dask-image] >= 0.1.2",
     "numcodecs",
     "zarr",