feat: upgrade to v4

Author: thomasrockhu-codecov

.github/workflows/ci.yml

@@ -11,8 +11,8 @@ jobs:
         with:
           python-version: '3.10'
       - name: Install dependencies
-        run: pip install -r requirements.txt
-      - name: Run tests and collect coverage
-        run: pytest --cov app
+        run: |
+          pip install -r requirements.txt
+          pip install codecov-cli
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4.0.0-beta.1