Minor rework of the pipeline
Minor rework of the pipeline

This will now fetch accession data while getting metadata. Maybe risky
for memory reasons, but hopefully is ok. I can limit it using job groups
if need but, but I'd rather not. Also, I suspect I will have to clean up
the joins when combining accessions and metadata so they are nicer.

RNAcentral/rnacentral-import-pipeline,RNAcentral/rnacentral-import-pipeline,RNAcentral/rnacentral-import-pipeline,RNAcentral/rnacentral-import-pipeline