OMI bug regarding translation

[hedwiglieselotte]

Description of the issue

These are the bugs I found while using OMI to review metadata in DigiPlan.

Steps to Reproduce

0. I created a metadata file
1. omi translate -f oep-v1.5 -t oep-v1.5

Ideas of solution

Describe possible ideas for solution and evaluate advantages and disadvantages.

Context and Environment

• Version used: 0.1.2
• Operating system: Linux
• Environment setup and (python) version: 3.10

Workflow checklist

• I am aware of the workflow in CONTRIBUTING.md

[hedwiglieselotte]

Exception 1:
omi.dialects.base.parser.ParserException: invalid value for date: 2023-28-03`

[hedwiglieselotte]

Exception 2:

  File "/home/local/RL-INSTITUT/hedwig.bartels/miniconda3/envs/Metadaten/lib/python3.10/site-packages/omi/dialects/oep/parser.py", line 65, in parse_date_or_none
    raise ParserException(f"invalid type for date: {type(x)}")
omi.dialects.base.parser.ParserException: invalid type for date: <class 'list'>