upgrade codecov action

.github/workflows/tests.yml

@@ -27,16 +27,14 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install flake8 pytest pytest-cov
+          pip install ruff pytest pytest-cov
           pip install -e .
-      - name: Lint with flake8
+      - name: Lint with ruff
         run: |
-          # stop the build if there are Python syntax errors or undefined names
-          flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
-          # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
-          flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+          ruff format --check
+          ruff check
       - name: Test with pytest
         run: |
-          pytest --cov=src
+          pytest --cov=src test
       - name: Upload Coverage to Codecov
-        uses: codecov/codecov-action@v2
+        uses: codecov/codecov-action@v3