ci: verify pip conf script in multi python versions

.github/workflows/ci.yml

@@ -60,24 +60,17 @@ jobs:
       - name: Check code style and Type Hint
         run: poetry run fast check
       - name: Verify pip conf script
-        run: |
-          poetry run python pip_conf.py
-          ./pip_conf.py
+        run: ./pip_conf.py
 
-  py27:
-    runs-on: ubuntu-latest
+  ConfPip:
     strategy:
       matrix:
-        python-version: [2.7]
+        python-version: [2.7, 3.6, 3.7, 3.8, 3.9, 3.10, 3.11, 3.12, 3.13]
     steps:
       - uses: actions/checkout@v4
-      - name: Setup Python
-        id: setup-python
-        uses: actions/setup-python@v5
+      - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
           allow-prereleases: true
-      - name: Check pip config script with python2.7
-        run: |
-          python pip_conf.py
-          ./pip_conf.py
+      - name: Verify pip conf script
+        run: python pip_conf.py