Cleanup of complete blob transfer jobs

[pditommaso]

The blob cache uses Kubernetes pods (and job in the future) to upload them in the cache storage.

Those jobs should be deleted when the upload is completed successfully.

It could be used the same strategy used for build job

https://github.com/seqeralabs/wave/blob/4adb5e2e7b66de8f373d2729ac69b01429b66a44/src/main/groovy/io/seqera/wave/service/cleanup/CleanupStrategy.groovy#L36-L36