Also cut the main garbage collection function into smaller bits.
We requeue jobs in batches of 500.

Successful retrieve requests are asynchronously deleted as soon as they
are complete. Then from time to time (every 500), the requests get removed from
process ownership in bulk.

Retry once the archiveretrieve CI job, as sometimes the eos instance reports no space for a possible bad timing between the FST and the MGM.

Add mgmofs.protowfhostport mgmofs.protowfendpoint to MGM config before the MGM actually start and fix protowfendpoint: it must begin with '/'.

This reverts commit fa5150d3.

cta/CTA#212 Verify the tape catalogue enforces the rule that all tape copies have the same file size and checksum.

Fixed.