Support new `pasqal-cloud` features

[HGSilveri]

Since v0.4, pasqal-cloud has introduced a handful of useful new features:

• [x] Open batches: Adding jobs to a batch after it was created
• [ ] Retry: The ability to retry all or specific jobs in a batch
• [x] Partial results: Allow fetching the results of the successful jobs in a batch, even if part of them has failed or is pending
• [ ] Batch/Job cancellation: Provide the option to cancel a batch or job execution

Supporting all these might not be feasible within the backend interfaces but we should at least consider implementing and doing so when possible.