restore codecov

Author: calccrypto

.github/workflows/codecov.yml

@@ -137,5 +137,5 @@ jobs:
       uses: codecov/codecov-action@v4
       with:
         verbose: true
-        gcov: true
-        fail_ci_if_error: false
+        fail_ci_if_error: true
+        token: ${{ secrets.CODECOV_TOKEN }}