Fix error publishing 2.5.7 release

[caldito]

Prerequisites

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  • Checked that your issue isn't already filled: https://github.com/issues?utf8=✓&q=is%3Aissue+user%3Aidealista
  • Checked that there is not already provided the described functionality

Description

The release 2.5.7 has not been published due to an error in setup.py, which indicates that the version is 2.5.6

Expected behavior:
The released to be published when creating a tag

Actual behavior:
The release is not published when creating a tag

Reproduces how often:
100%

Versions

2.5.7

Additional Information

Any additional information, configuration or data that might be necessary to reproduce the issue.