ci: use codecov-action@v2

Signed-off-by: Sebastien Binet <binet@cern.ch>

Author: sbinet

.github/workflows/ci.yml

@@ -110,4 +110,4 @@ jobs:
         version: "2022.1"
     - name: Upload-Coverage
       if: matrix.platform == 'ubuntu-latest'
-      uses: codecov/codecov-action@v1
+      uses: codecov/codecov-action@v2