Update Codecov action configuration to use secret token and disable CI failure on error

Author: Theaxiom

.github/workflows/ci.yml

@@ -86,8 +86,9 @@ jobs:
     - name: Upload coverage to Codecov
       uses: codecov/codecov-action@v4
       with:
+        token: ${{ secrets.CODECOV_TOKEN }}
         file: lcov.info
-        fail_ci_if_error: true
+        fail_ci_if_error: false
 
   security:
     name: Security Audit