chore(deps): update codecov/codecov-action action to v5

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/blockchain.yml

@@ -200,7 +200,7 @@ jobs:
     # TODO: figure out if we need a token
     - name: Upload coverage to codecov
       if: always()
-      uses: codecov/codecov-action@v4
+      uses: codecov/codecov-action@v5
     - name: Fail if there are failed tests
       if: steps.unit-tests-summary.outputs.failed > 0
       run: |