test examples against python3.10

.github/workflows/python.yml

@@ -119,6 +119,7 @@ jobs:
         - '3.7'
         - '3.8'
         - '3.9'
+        - '3.10'
       fail-fast: false
     defaults:
       run:
@@ -130,9 +131,6 @@ jobs:
         python-version: ${{ matrix.python-version }}
     - run: pip install --upgrade pipenv==2020.8.13
     - run: pipenv --python "$(which python)" install --deploy --dev
-    # > RuntimeError: module compiled against API version 0xe but this version of numpy is 0xd
-    - run: python3 -c 'import sys; sys.exit(sys.version_info >= (3, 8))'
-        || pipenv run pip install --no-deps numpy==1.20.1
     - run: pipenv graph
     # > the default behaviour is to abort conversion [...] if one of the cells throws an error
     - run: pipenv run jupyter nbconvert --execute --inplace *.ipynb