iox-#2047 Fix gcc 13 warnings

[elBoberido]

Pre-Review Checklist for the PR Author

1. Code follows the coding style of CONTRIBUTING.md
2. Tests follow the best practice for testing
3. Changelog updated in the unreleased section including API breaking changes
4. Branch follows the naming format (iox-123-this-is-a-branch)
5. Commits messages are according to this guideline
   • Commit messages have the issue ID (iox-#123 commit text)
   • Commit author matches Eclipse Contributor Agreement (and ECA is signed)
6. Update the PR title
   • Follow the same conventions as for commit messages
   • Link to the relevant issue
7. Relevant issues are linked
8. Add sensible notes for the reviewer
9. All checks have passed (except task-list-completed)
10. All touched (C/C++) source code files from iceoryx_hoofs are added to ./clang-tidy-diff-scans.txt
11. Assign PR to reviewer

Notes for Reviewer

This PR fixes the warnings in GCC 13. They are kind of false positives but I was able to give the compiler some hints to do not trigger them for some of the warnings.

Checklist for the PR Reviewer

• Commits are properly organized and messages are according to the guideline
• Code according to our coding style and naming conventions
• Unit tests have been written for new behavior
• Public API changes are documented via doxygen
• Copyright owner are updated in the changed files
• All touched (C/C++) source code files from iceoryx_hoofs have been added to ./clang-tidy-diff-scans.txt
• PR title describes the changes

Post-review Checklist for the PR Author

1. All open points are addressed and tracked via issues

References

• Closes Support gcc 13.2? #2047

[elBoberido]

@FerdinandSpitzschnueffler @mossmaurice @dkroenke @MatthiasKillat @elfenpiff @budrus feel free to add yourself as reviewer

[codecov]

Codecov Report

Merging #2089 (11b454d) into master (443a0d8) will increase coverage by 0.01%.
Report is 27 commits behind head on master.
The diff coverage is 94.82%.

@@            Coverage Diff             @@
##           master    #2089      +/-   ##
==========================================
+ Coverage   80.04%   80.06%   +0.01%     
==========================================
  Files         417      417              
  Lines       16055    16066      +11     
  Branches     2255     2253       -2     
==========================================
+ Hits        12852    12864      +12     
  Misses       2398     2398              
+ Partials      805      804       -1     

Flag	Coverage Δ
unittests	79.85% <94.82%> (+0.02%)	⬆️
unittests_timing	15.32% <22.41%> (+0.02%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
...yx_hoofs/vocabulary/include/iox/detail/variant.inl	94.17% <100.00%> (+0.23%)	⬆️
iceoryx_hoofs/vocabulary/include/iox/variant.hpp	100.00% <ø> (ø)
...nternal/popo/building_blocks/chunk_distributor.hpp	100.00% <ø> (ø)
...nternal/popo/building_blocks/chunk_distributor.inl	95.62% <100.00%> (-0.10%)	⬇️
...ryx_posh/source/mepoo/shm_safe_unmanaged_chunk.cpp	100.00% <ø> (ø)
...ryx_hoofs/vocabulary/include/iox/detail/string.inl	96.03% <83.33%> (+0.03%)	⬆️
...clude/iceoryx_hoofs/internal/cxx/variant_queue.inl	80.00% <94.44%> (+3.17%)	⬆️

... and 1 file with indirect coverage changes

[mossmaurice]

LGTM!

[elBoberido]

@mossmaurice I guess the eclipse admins did not yet applied the changes for only one required reviewer?