ci: run linter

.github/workflows/main.yml

@@ -23,6 +23,8 @@ jobs:
           git config user.email "actions@users.noreply.github.com"
       - name: Test
         run: coverage run -m pytest 
+      - name: Lint
+        run: make lint
       - name: Update(master)
         if: ${{ github.ref == 'refs/heads/master' && github.event_name != 'pull_request' }}
         env: