Problem installing main or develop branch with pip

When I try to install saqc via

pip install git+https://git.ufz.de/rdm-software/saqc@main

or

pip install git+https://git.ufz.de/rdm-software/saqc@develop

as shown in the installation guide, I get following error

<SNIP>
ValueError: An saqc release must have version in the format X.Y.Z, which requires a git tag on the same commit. Please set a tag, then build again. {'version': '2.5.0.post0.dev12', 'full-revisionid': 'c19a6eea20167ee7ca02b3ae20dbde87c3c5c666', 'dirty': False, 'error': None, 'date': '2023-09-05T20:37:08+0200'}
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
error: subprocess-exited-with-error

× Getting requirements to build wheel did not run successfully.
│ exit code: 1
╰─> See above for output.

note: This error originates from a subprocess, and is likely not a problem with pip.