Fix linter action (#20)

* fix linter action

* update pip install cmd

* update pip install cmd

* update pip install cmd

.github/workflows/linter.yml

@@ -12,15 +12,12 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Set up Python
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         with:
-          python-version: '3.11'
+          python-version: '3.12'
 
       - name: Install Python dependencies
-        run: |
-          pip install black \
-          pip install mypy \
-          pip install .
+        run: pip install black mypy .
 
       - name: Run black
         uses: wearerequired/lint-action@v2