[Misc] Apply SonarCloud rule cpp:S7172 (!1122) · Merge requests · CTA / CTA · GitLab

Description

Rule name: Use has_value() or another member function to clarify that the code tests the presence of a value in the "optional", not the contained "unsigned long" value itself.
Rule code: cpp:S7172
Rule link: https://sonarcloud.io/project/issues?open=AZg_4QwUrKnheRHEMnU8&id=cern-cta_CTA

Checklist

Documentation reflects the changes made.
Merge Request title is clear, concise, and suitable as a changelog entry. See our contributing docs

References

Closes #1384 (closed)