chore: adding coverage upload (#13)

Signed-off-by: Aaron Gonzales <aagonzales@nvidia.com>

Author: binaryaaron

.github/workflows/README.md

@@ -194,5 +194,3 @@ All compliance and release workflows reuse templates from [NVIDIA-NeMo/FW-CI-tem
 | `config/.secrets.baseline`                        | False positives for secrets detector |
 | `../../.python-version`                           | Python version for uv packaging      |
 | `../../src/nemo_safe_synthesizer/package_info.py` | Version information                  |
-
-

.github/workflows/ci-checks.yml

@@ -126,3 +126,11 @@ jobs:
           name: coverage-report
           path: coverage.xml
           retention-days: 30
+
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v5
+        if: matrix.python-version == '3.11'
+        with:
+          files: coverage.xml
+          token: ${{ secrets.CODECOV_TOKEN }}
+          fail_ci_if_error: false