Redefine minimal dependency versions

[veenstrajelmer]

Several compatibilty issues have been found with older versions of dependent packages. Update the minimal versions in setup.cfg and requirements.txt to versions that work indeed. A first setup for requirements_minimal.txt is this:

scipy==1.6.0 #pip install fails with scipy<1.6.0 in py39, is also 3 years old
numpy==1.22 #numpy 1.21 is EOL since june 2023
matplotlib==3.7.0 #contour colorbar on uniform values fails with matplotlib<3.7.0, several other features with matplotlib<3.6.0
pandas==1.4.0 #xarray 2023.3.0 requires pandas>=1.4. TODO: if pandas>=2.0.0 is installed, xarray>=2023.3.0 is required
shapely==2.0.0 #shapely<2.0.0 give "AttributeError: module 'shapely' has no attribute 'GeometryType'"
geopandas==0.13.0 #geopandas<0.13.0 require shapely<2.0.0
fiona==1.9 #fiona<1.9 does not contain sql where filter
contextily==1.0.0 #contextily<1.0.0 is from April 2020
xarray==2022.6.0 #xarray<2022.6.0 did not find certain variable in dataset in test_data_map testcase.
dask==2022.6.0 #aligned with xarray, no particular reason
netcdf4==1.5.4 #pip install fails with netcdf4<1.5.4 in py39
bottleneck==1.3.3 #pip install fails with bottleneck<1.3.3 in py39
xugrid==0.6.5 #xugrid 0.6.5 supports wider xarray version range. TODO: xugrid>=0.6.5 requires xarray>=2022.11.0 without explicitly stating this, will be solved in next version (https://github.com/Deltares/xugrid/issues/167)
cdsapi==0.6.1 #cdsapi<0.6.1 is from Feb 2021 and does not support newer python versions
pydap==3.4.0 #pydap<3.4.0 is from May 2017 and does not support newer python versions
pooch==1.1.0 #pooch<1.1.0 do not have attribute retrieve
hydrolib-core==0.5.1 #hydrolib-core<0.5.1 does not yet contain 3D z-sigma mdu settings and many other essentials
meshkernel==2.1.0 #meshkernel<2.1.0 does not yet contain mesh2d_refine_based_on_gridded_samples and other essentials

TODO:

• add fixed versions behind all libraries (probably only works for py39, since many minimal versions are not pip installable in py311 environment)
• test lower versions for xarray with xugrid from main
• test lower versions of scipy, contextily and maybe others
• pip install -r requirements_minimal.txt
• pytest -m "not acceptance"
• Support older xarray versions or require minimal xarray version xugrid#167
• pytest and create unittest if something fails
• translate fixed versions to minimal versions for setup.cfg and requirements.txt
• add github testcase with these minimal versions by replacing >= in requirements.txt with == and installing env from that file.
• update whatsnew