codecov: update action to version 5

Author: paugier

.github/workflows/ci-linux.yml

@@ -38,7 +38,7 @@ jobs:
 
     - name: Upload coverage to codecov
       if: ${{ success() }}
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v5
       with:
         token: ${{ secrets.CODECOV_TOKEN }}
         fail_ci_if_error: false # optional (default = false)