Run tests for Gazebo PR 2941

[traversaro]

Do not merge, this is only useful to check if gazebosim/gazebo-classic#2941 actually fixes the test failure:

2021-03-03T08:54:55.9713520Z 153/402 Test #153: UNIT_OpenAL_TEST ......................................Subprocess aborted***Exception:   0.18 sec
2021-03-03T08:54:55.9714680Z [==========] Running 11 tests from 1 test case.
2021-03-03T08:54:55.9716330Z [----------] Global test environment set-up.
2021-03-03T08:54:55.9717290Z [----------] 11 tests from OpenAL
2021-03-03T08:54:55.9717760Z [ RUN      ] OpenAL.SourceInvalid
2021-03-03T08:54:55.9718670Z �[1;31m[Err] [OpenAL.cc:154] �[0m�[1;31mAudio device not open
2021-03-03T08:54:55.9719570Z �[0m[       OK ] OpenAL.SourceInvalid (0 ms)
2021-03-03T08:54:55.9720100Z [ RUN      ] OpenAL.DefaultDevice
2021-03-03T08:54:55.9721140Z �[1;33mWarning [parser.cc:636]�[0m Converting a deprecated SDF source[data-string].
2021-03-03T08:54:55.9721870Z dyld: lazy symbol binding failed: Symbol not found: _alcOpenDevice
2021-03-03T08:54:55.9723300Z   Referenced from: /Users/runner/work/gazebo-conda-force-ci/gazebo-conda-force-ci/gazebo/build/gazebo/util/libgazebo_util.11.dylib
2021-03-03T08:54:55.9724180Z   Expected in: flat namespace
2021-03-03T08:54:55.9724460Z 
2021-03-03T08:54:55.9724840Z dyld: Symbol not found: _alcOpenDevice
2021-03-03T08:54:55.9726190Z   Referenced from: /Users/runner/work/gazebo-conda-force-ci/gazebo-conda-force-ci/gazebo/build/gazebo/util/libgazebo_util.11.dylib
2021-03-03T08:54:55.9727080Z   Expected in: flat namespace

that it happens with the current gazebo11 branch, see for example: https://github.com/traversaro/gazebo-conda-forge-ci/runs/2020134469 .

Note that in any case OpenAL is deprecated on macOS.

[traversaro]

Indeed, while overall the tests suite is failing, the UNIT_OpenAL_TEST is now fixed thanks to gazebosim/gazebo-classic#2941 :

2021-03-03T12:47:13.9479590Z         Start 153: UNIT_OpenAL_TEST
2021-03-03T12:47:15.5999490Z 153/402 Test #153: UNIT_OpenAL_TEST ......................................   Passed    1.65 sec
2021-03-03T12:47:15.6003430Z         Start 154: check_UNIT_OpenAL_TEST
2021-03-03T12:47:15.6580900Z 154/402 Test #154: check_UNIT_OpenAL_TEST ................................   Passed    0.06 sec

[traversaro]

Not in progress at the moment.