Bump actions/setup-python from 6 to 7 (#81)

Author: dependabot[bot]

.github/workflows/check.yml

@@ -20,7 +20,7 @@ jobs:
         uses: actions/checkout@v7
 
       - name: Setup Python
-        uses: actions/setup-python@v6
+        uses: actions/setup-python@v7
         with:
           python-version: ${{ env.PYTHON }}