pip install poetryを先に持って来る

.github/workflows/python_lint.yml

@@ -25,15 +25,16 @@ jobs:
       - uses: actions/setup-python@v4
         with:
           python-version: "3.8"
+      - name: Install Poetry
+        run: |
+          python -m pip install --upgrade poetry
+          poetry config virtualenvs.create false
       - name: Validate poetry.lock
         run: |
           poetry lock --no-update
           git diff
       - name: Install dependencies
-        run: |
-          python -m pip install --upgrade poetry
-          poetry config virtualenvs.create false
-          poetry install --with test
+        run: poetry install --with test
       - name: Check code style for voicevox_core_python_api
         run: |
           black --check .