iox-#271: Fix name clash

[marthtz]

Signed-off-by: Hintz Martin (CC-AD/ESW1) martin.hintz@de.bosch.com

[codecov]

Codecov Report

Merging #272 into master will decrease coverage by 0.01%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master     #272      +/-   ##
==========================================
- Coverage   62.18%   62.16%   -0.02%     
==========================================
  Files         296      296              
  Lines        9213     9212       -1     
  Branches     1727     1727              
==========================================
- Hits         5729     5727       -2     
  Misses       2469     2469              
- Partials     1015     1016       +1     

Impacted Files	Coverage Δ
iceoryx_posh/source/roudi/roudi_process.cpp	54.88% <0.00%> (+0.18%)	⬆️
iceoryx_utils/source/posix_wrapper/timer.cpp	65.67% <0.00%> (-0.85%)	⬇️

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[elBoberido]

it seems someone accidentally disabled the warnings with #178
https://github.com/eclipse/iceoryx/pull/178/files?file-filters%5B%5D=.cpp&file-filters%5B%5D=.hpp&file-filters%5B%5D=.inl&file-filters%5B%5D=.sh&file-filters%5B%5D=.txt&file-filters%5B%5D=.yml#diff-ec2db60457389b7b9b8ed6a45914454dR20
It should be set(ICEORYX_WARNINGS instead of set(TEST_CXX_FLAGS