Merge pull request #18 from codecov/codecov-action-v4

chore(ci): upgrade to codecov v4

Author: thomasrockhu-codecov

.github/workflows/ci.yml

@@ -6,7 +6,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
 
     - name: Set up Python 3.10
       uses: actions/setup-python@v2
@@ -19,4 +19,6 @@ jobs:
       run: |
         pytest --cov --cov-report xml
     - name: Upload coverage reports to Codecov with GitHub Action
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4
+      env:
+        CODECOV_TOKEN: ${{ secrets.CODECOV_ORG_TOKEN }}