Tests: Reduce test flakiness

[csadorf]

No description provided.

[codecov]

Codecov Report

Merging #109 (8fc02e7) into main (e4ccad7) will increase coverage by 0.15%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #109      +/-   ##
==========================================
+ Coverage   86.14%   86.30%   +0.15%     
==========================================
  Files           9        9              
  Lines         823      825       +2     
==========================================
+ Hits          709      712       +3     
+ Misses        114      113       -1     

Flag	Coverage Δ
py-3.10	86.18% <100.00%> (+0.03%)	⬆️
py-3.7	85.67% <100.00%> (+0.03%)	⬆️
py-3.8	86.13% <100.00%> (+0.03%)	⬆️
py-3.9	86.25% <100.00%> (?)

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Impacted Files	Coverage Δ
aiidalab_launch/profile.py	94.91% <100.00%> (+0.17%)	⬆️
aiidalab_launch/__main__.py	79.40% <0.00%> (+0.33%)	⬆️

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[csadorf]

Unfortunately tests are still a bit flaky. It seems that the container will sometimes die without any obvious reason in which case tests that are executed against the running container will fail.