test: skip MQTT broker test on macOS

[JKRhb]

This PR proposes to skip one of the MQTT tests on macOS until the underlying issue (#1159) is fixed.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (8761e64) 76.66% compared to head (3e5fecc) 76.88%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1181      +/-   ##
==========================================
+ Coverage   76.66%   76.88%   +0.21%     
==========================================
  Files          80       80              
  Lines       16813    16813              
  Branches     1618     1618              
==========================================
+ Hits        12890    12926      +36     
+ Misses       3893     3857      -36     
  Partials       30       30              

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[danielpeintner]

I agree, it is very annoying to see failings tests all the time.
The approach seems fine for now since we skip tests on MacOS only

[danielpeintner]

@JKRhb is there a reason why it is still marked as "work in progress" ?

[danielpeintner]

FYI: MQTT tests are failing on Windows also, see https://github.com/eclipse-thingweb/node-wot/actions/runs/7098842840/job/19321848426#step:8:414

[relu91]

I'm working on MQTT client, let's put this on hold.

[JKRhb]

@JKRhb is there a reason why it is still marked as "work in progress" ?

The tests were failing somehow when I was working on them yesterday, but apparently, 3e5fecc actually resolved the issue 😅 But if you are working on an actual fix, @relu91, then we can also simply close this one – feel free to do so :)

[JKRhb]

I think with #1184, we can consider this one superseded :)