Code coverage tooling is outdated

The library was running the command `npm run report-coverage` to provide test coverage information. However, the command is causing the CI to fail due to the error:

```
==> Uploading reports
(node:1970) [DEP0040] DeprecationWarning: The `punycode` module is deprecated. Please use a userland alternative instead.
(Use `node --trace-deprecation ...` to show where the warning was created)
/home/runner/work/node-httptransfer/node-httptransfer/node_modules/codecov/lib/codecov.js:212
} else if (result.split('\n').length !== 2) {
^

TypeError: result.split is not a function
at /home/runner/work/node-httptransfer/node-httptransfer/node_modules/codecov/lib/codecov.js:212:25
at /home/runner/work/node-httptransfer/node-httptransfer/node_modules/teeny-request/build/src/index.js:217:17
at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
```

Research into `codecov` reveals that it has been deprecated for several years. The script was removed from the CI to unblock development, so the coverage tooling should be updated if coverage statistics are still desired.

Commencez par examiner le script npm run report-coverage et la configuration CI qui l'invoquait auparavant. Vérifiez comment le package obsolète codecov provoque l'échec de l'envoi, puis identifiez une méthode prise en charge pour la publication de la couverture si celle-ci est toujours requise. Le travail est terminé lorsque le workflow de couverture s'exécute correctement sans les outils obsolètes.

Rédigé par le modèle d'indexation à partir du texte de l'issue.