Upgrade of old Oasis

OK, further we go, so after fixing files for one upload and running reprocessing again, the parsing fails with:

ERROR    nomad.processing     2023-03-25T13:16:51 process failed
  - exception: Traceback (most recent call last):
      File "/usr/local/lib/python3.7/site-packages/nomad/processing/data.py", line 1142, in parsing
        parser = parser.__class__()
    TypeError: __init__() missing 1 required positional argument: 'parser_class_name'
  - exception_hash: 4KSIzXlz0olDx7pukivEmraw4dW4
  - nomad.commit: 
  - nomad.deployment: oasis
  - nomad.entry_id: buGWQG4lNJuvsznlcojC_N6fYu9J
  - nomad.mainfile: aTiN/Ti1.1N1.0-500/VASP0Krelax/vasprun.xml
  - nomad.processing.error: __init__() missing 1 required positional argument: 'parser_class_name'
  - nomad.processing.errors: could not re-create parser instance
  - nomad.processing.logger: nomad.processing
  - nomad.processing.parser: parsers/vasp
  - nomad.processing.proc: Entry
  - nomad.processing.process: process_entry
  - nomad.processing.process_status: RUNNING
  - nomad.processing.process_worker_id: Af1HKnZ9S4ezOOhPPmzJzA
  - nomad.processing.step: parsers/vasp
  - nomad.service: unknown nomad service
  - nomad.upload_id: 4oO8qNHUSe-GFgX1oNB8UQ
  - nomad.version: 1.1.8.dev0+ge8e774f58.d20230228

This seems independent of the specific parser (so far tested VASP or Wien2k).