Use actions/setup-python's pip cache

.github/workflows/deploy.yml

@@ -19,18 +19,12 @@ jobs:
         with:
           fetch-depth: 0
 
-      - name: Cache
-        uses: actions/cache@v2
-        with:
-          path: ~/.cache/pip
-          key: deploy-${{ hashFiles('**/setup.py') }}
-          restore-keys: |
-            deploy-
-
       - name: Set up Python
         uses: actions/setup-python@v2
         with:
           python-version: "3.10"
+          cache: pip
+          cache-dependency-path: "setup.py"
 
       - name: Install dependencies
         run: |