fix: Update to MorphoCloud/MorphoCloudWorkflow@1a7ea11

List of MorphoCloudWorkflow changes:

```
$ git shortlog 2dbdd12..1a7ea11 --no-merges
Jean-Christophe Fillion-Robin (2):
      fix(create-instance): Reboot to ensure correct torch version is installed
      test
```

See MorphoCloud/MorphoCloudWorkflow@2dbdd12...1a7ea11