add jupyterlab-git extension (#1895)

* add jupyterlab-git extension

* order requirements

* add doc for jupyterlab-git

* fix ordering

* add test exclude for jupyterlab-git

---------

Co-authored-by: Romeo Kienzler <romeo.kienzler1@ibm.com>

Author: romeokienzler

docs/using/selecting.md

@@ -123,6 +123,7 @@ It contains:
   [dask](https://www.dask.org/),
   [dill](https://pypi.org/project/dill/),
   [h5py](https://www.h5py.org),
+  [jupyterlab-git](https://github.com/jupyterlab/jupyterlab-git),
   [matplotlib-base](https://matplotlib.org/),
   [numba](https://numba.pydata.org/),
   [numexpr](https://github.com/pydata/numexpr),

scipy-notebook/Dockerfile

@@ -41,6 +41,7 @@ RUN mamba install --yes \
     'ipywidgets' \
     # Temporary fix for: https://github.com/jupyter/docker-stacks/issues/1851
     'jupyter_server>=2.0.0' \
+    'jupyterlab-git' \
     'matplotlib-base' \
     'numba' \
     'numexpr' \

tests/base-notebook/test_packages.py

@@ -70,6 +70,7 @@
     "conda-forge::blas[build=openblas]",
     "hdf5",
     "jupyter_server[version='>",  # Temporary fix for: https://github.com/jupyter/docker-stacks/issues/1851
+    "jupyterlab-git",
     "openssl",
     "protobuf",
     "python",