fix(test): interop transport

[AlejandroCabeza]

Free disk space before running the steps of interop's transport test.
The original job has enough space but in our repo it crashes midway due to missing disk space.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.53%. Comparing base (02c96fc) to head (fad535e).
Report is 38 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1159      +/-   ##
==========================================
- Coverage   84.53%   84.53%   -0.01%     
==========================================
  Files          91       92       +1     
  Lines       15517    16403     +886     
==========================================
+ Hits        13118    13866     +748     
- Misses       2399     2537     +138     

see 80 files with indirect coverage changes

[kaiserd]

Thank you! LGTM

[diegomrsantos]

As we discussed on discord, this is not the right solution.

The job now logs much more things and takes longer to run. It might be better to find a way to reduce the logs like it was before. it's taking 41 min to run now. Previously, it took 10 min.

[diegomrsantos]

We agreed to merge it and work on fixing the caching issue that is making the docker images to be built on every run.

[kaiserd]

We discussed this in the meeting. We'll go with this version for now to have the tests run.
Next step is establishing a cache for docker imgs to make the runs faster.