Fix UNIT_AddedMassFeatures_TEST failure in macOS

[traversaro]

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Issue

Test UNIT_AddedMassFeatures_TEST fails on macOS, see https://dev.azure.com/conda-forge/feedstock-builds/_build/results?buildId=654592&view=logs&jobId=a70f640f-cc53-5cd3-6cdc-236a1aa90802&j=58ac6aab-c4bc-5de2-2894-98e408cc8ec9&t=933f325c-924e-533d-4d95-e93b5843ce8b and :

136/165 Test #136: UNIT_AddedMassFeatures_TEST ....................................***Exception: SegFault  0.36 sec
Running main() from /Users/runner/miniforge3/conda-bld/gz-physics6_1675788783812/work/test/gtest_vendor/src/gtest_main.cc
[==========] Running 1 test from 1 test suite.
[----------] Global test environment set-up.
Warning [Inertia.cpp:335] [Inertia::verifySpatialTensor] Invalid entry for (4,1): 10. Value should be exactly zero.
Warning [Inertia.cpp:335] [Inertia::verifySpatialTensor] Invalid entry for (5,2): 15. Value should be exactly zero.
Warning [Inertia.cpp:335] [Inertia::verifySpatialTensor] Invalid entry for (0,3): 4. Value should be exactly zero.
Warning [Inertia.cpp:335] [Inertia::verifySpatialTensor] Invalid entry for (1,4): 10. Value should be exactly zero.
Warning [Inertia.cpp:335] [Inertia::verifySpatialTensor] Invalid entry for (2,5): 15. Value should be exactly zero.
Warning [Inertia.cpp:359] [Inertia::verifySpatialTensor] Mismatch between entries (3,1) and (4,0). They should sum to zero, but instead they sum to 14 which is outside of the permitted tolerance (1e-08).
Warning [Inertia.cpp:359] [Inertia::verifySpatialTensor] Mismatch between entries (3,2) and (5,0). They should sum to zero, but instead they sum to 19 which is outside of the permitted tolerance (1e-08).
Warning [Inertia.cpp:359] [Inertia::verifySpatialTensor] Mismatch between entries (4,2) and (5,1). They should sum to zero, but instead they sum to 25 which is outside of the permitted tolerance (1e-08).
Warning [Inertia.cpp:359] [Inertia::verifySpatialTensor] Mismatch between entries (0,4) and (1,3). They should sum to zero, but instead they sum to 14 which is outside of the permitted tolerance (1e-08).
Warning [Inertia.cpp:359] [Inertia::verifySpatialTensor] Mismatch between entries (0,5) and (2,3). They should sum to zero, but instead they sum to 19 which is outside of the permitted tolerance (1e-08).
Warning [Inertia.cpp:359] [Inertia::verifySpatialTensor] Mismatch between entries (1,5) and (2,4). They should sum to zero, but instead they sum to 25 which is outside of the permitted tolerance (1e-08).
Warning [Inertia.cpp:207] [Inertia::setSpatialTensor] Passing in an invalid spatial inertia tensor. Results might not be physically accurate or meaningful.
[       OK ] AddedMassFeatures.AddedMass (242 ms)
[----------] 1 test from AddedMassFeatures (242 ms total)

[----------] Global test environment tear-down
[==========] 1 test from 1 test suite ran. (242 ms total)
[  PASSED  ] 1 test.

Installed packages

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Environment info

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