Iox #563 move tests in utils moduletests into anonymous namespace

[elBoberido]

1. Code follows the coding style of CONTRIBUTING.md
2. Tests follow the best practice for testing
3. Branch follows the naming format (iox-#123-this-is-a-branch)
4. Commits messages are according to this guideline
   • Commit messages have the issue ID (iox-#123 commit text)
   • Commit messages are signed (git commit -s)
   • Commit author matches Eclipse Contributor Agreement (and ECA is signed)
5. Update the PR title
   • Follow the same conventions as for commit messages
   • Link to the relevant issue
6. Relevant issues are linked
7. Add sensible notes for the reviewer
8. All checks have passed (except task-list-completed)
9. Assign PR to reviewer

Notes for Reviewer

Just to check if this fixes the leak sanitizer issue

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
• PR title describes the changes

Post-review Checklist for the PR Author

1. All open points are addressed and tracked via issues

References

• Partly closes Move all tests into an anonymous namespace #563

[codecov]

Codecov Report

Merging #667 (64354f0) into release_1.0 (79db27b) will decrease coverage by 0.01%.
The diff coverage is n/a.

@@               Coverage Diff               @@
##           release_1.0     #667      +/-   ##
===============================================
- Coverage        74.36%   74.34%   -0.02%     
===============================================
  Files              318      318              
  Lines            11204    11204              
  Branches          1963     1963              
===============================================
- Hits              8332     8330       -2     
- Misses            2100     2101       +1     
- Partials           772      773       +1     

Flag	Coverage Δ
unittests	74.30% <ø> (-0.02%)	⬇️
unittests_timing	31.20% <ø> (-0.03%)	⬇️

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

Impacted Files	Coverage Δ
...e/iceoryx_utils/internal/objectpool/objectpool.hpp	89.40% <ø> (ø)
iceoryx_utils/source/posix_wrapper/timer.cpp	59.64% <0.00%> (-0.88%)	⬇️
...ils/include/iceoryx_utils/internal/cxx/smart_c.inl	89.06% <0.00%> (ø)

[elBoberido]

it seems this also fixes #666

The base branch was changed.