ci: runs on windows, exclude linting for Python 3.7

.github/workflows/ci.yml

@@ -13,9 +13,7 @@ jobs:
       matrix:
         python-version: ["3.x", "3.11", "3.10", "3.9", "3.8", "3.7"]
         platform: [ubuntu-latest, macos-latest, windows-latest]
-        exclude:
-          - platform: windows-latest
-          - python-version: [pypy-3.9]
+        # exclude:
 
     runs-on: ${{ matrix.platform }}
 
@@ -44,6 +42,7 @@ jobs:
           flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
           # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
           flake8 . --count --exit-zero --max-complexity=10 --max-line-length=200 --statistics
+        if: matrix.python-version != '3.7'
       - name: Type checking with mypy
         run: |
           mypy --install-types --non-interactive src/*.py tests/*.py