Make Codecov integration optional

Author: tinkerer-shubh

.github/workflows/coverage.yml

@@ -107,8 +107,11 @@ jobs:
           retention-days: 14
 
       - name: Upload coverage report to Codecov
+        # Only run if the Codecov token is configured
+        if: ${{ secrets.CODECOV_TOKEN != '' }}
+        continue-on-error: true  # Don't fail the workflow if Codecov upload fails
         uses: codecov/codecov-action@v3
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           files: lcov.info
-          fail_ci_if_error: true 
+          fail_ci_if_error: false  # Don't fail even if the Codecov upload fails