CI: update checks; update python versions

Author: MuellerSeb

.github/workflows/main.yml

@@ -26,22 +26,27 @@ jobs:
     steps:
       - uses: actions/checkout@v2
 
-      - name: Set up Python 3.8
+      - name: Set up Python 3.9
         uses: actions/setup-python@v2
         with:
-          python-version: 3.8
+          python-version: 3.9
 
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install black #pylint
-          pip install --editable .
+          pip install --editable .[check]
+
       - name: black check
         run: |
-          python -m black --check .
-      # - name: pylint check
-      #   run: |
-      #     python -m pylint anaflow/
+          python -m black --check --diff --color .
+
+      - name: isort check
+        run: |
+          python -m isort --check --diff --color .
+
+      - name: pylint check
+        run: |
+          python -m pylint src/anaflow/
 
   build_sdist:
     name: sdist on ${{ matrix.os }} with py ${{ matrix.python-version }}
@@ -50,7 +55,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        python-version: [3.6, 3.7, 3.8, 3.9]
+        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
 
     steps:
       - uses: actions/checkout@v2