Test on python 3.10, remove 3.6

Author: ianthomas23

.github/workflows/test.yml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       matrix:
         os: ['ubuntu-latest', 'macos-latest', 'windows-latest']
-        python: [3.6, 3.7, 3.8, 3.9]
+        python: [3.7, 3.8, 3.9, 3.10]
     env:
       OS: ${{ matrix.os }}
       PYTHON: ${{ matrix.python }}

setup.cfg

@@ -23,7 +23,7 @@ install_requires =
     numba
     xarray
 packages = find:
-python_requires = >=3.6
+python_requires = >=3.7
 zip_safe = False
 
 [options.entry_points]