🚨 Fixed error message from multiple IPO Checks

[lsschmid]

Description

Using fiction as a header only library in qmap results in an cmake error due to multiple IPO checks.

Checklist:

• The pull request only contains commits that are related to it.
• I have added appropriate tests and documentation.
• I have made sure that all CI jobs on GitHub pass.
• The pull request introduces no new warnings and follows the project's style guidelines.

[codecov]

Codecov Report

Merging #157 (fb266df) into main (5b03fe2) will not change coverage.
The diff coverage is n/a.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #157   +/-   ##
=======================================
  Coverage   94.24%   94.24%           
=======================================
  Files          76       76           
  Lines        7070     7070           
=======================================
  Hits         6663     6663           
  Misses        407      407           

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