Adds workaround to CI for windows and py3.7

Author: fakufaku

.github/workflows/pythonpackage.yml

@@ -27,6 +27,14 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
+    - name: Workaround for windows and python 3.7
+      if: matrix.os == 'windows-latest' && python-version == 3.7
+      run: |
+        pip install netCDF4<=1.5.8 
+        # There is no binary package of netCF4>=1.6.0 for windows and python 3.7
+        # the largest supported version is 1.5.8
+    - name: Install dependencies
+      run: |
         pip install -r requirements.txt
     - name: Lint with flake8
       run: |