🐛 Fix floating-point errors.

[Drewniok]

Description

This PR fixes a potential floating-point error when converting a parameter point to a step point.

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.

[github-actions]

clang-tidy review says "All clean, LGTM! 👍"

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (3450f49) 96.06% compared to head (fe0b091) 96.06%.

❗ Current head fe0b091 differs from pull request most recent head bdfc23c. Consider uploading reports for the commit bdfc23c to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #363   +/-   ##
=======================================
  Coverage   96.06%   96.06%           
=======================================
  Files         102      102           
  Lines       10115    10118    +3     
=======================================
+ Hits         9717     9720    +3     
  Misses        398      398           

Files	Coverage Δ
.../algorithms/simulation/sidb/operational_domain.hpp	97.68% <100.00%> (+0.02%)	⬆️

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[github-actions]

clang-tidy review says "All clean, LGTM! 👍"

[marcelwa]

Great catch. Many thanks! 🙏