build: speed up e2e transfer tests

[ndr-brt]

What this PR changes/adds

Speed up E2E transfer test, by implementing a EdcClassRuntimesExtension that takes care of starting the runtimes once per every test classes.

Why it does that

CI

Further notes

• had to add a check to force retry on the TransferProcessHttpClient because it's too quick in completing the transfer and the data-plane is not able to notify the completion because the entity is still leased. This implementation is useful also on production because it prevents eventual control-plane downs.

Linked Issue(s)

Closes #3442

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[codecov-commenter]

Codecov Report

Patch coverage: 22.22% and project coverage change: +0.12% 🎉

Comparison is base (656e10e) 72.08% compared to head (915ea69) 72.21%.

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Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3443      +/-   ##
==========================================
+ Coverage   72.08%   72.21%   +0.12%     
==========================================
  Files         834      835       +1     
  Lines       16827    16839      +12     
  Branches      953      953              
==========================================
+ Hits        12130    12160      +30     
+ Misses       4287     4270      -17     
+ Partials      410      409       -1     

Files Changed	Coverage Δ
...dc/junit/extensions/EdcClassRuntimesExtension.java	0.00% <0.00%> (ø)
...ent/transferprocess/TransferProcessHttpClient.java	83.33% <0.00%> (+3.33%)	⬆️
...pse/edc/connector/core/base/EdcHttpClientImpl.java	75.00% <80.00%> (+3.12%)	⬆️

... and 3 files with indirect coverage changes

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[paullatzelsperger]

I like the idea, we just need to careful when to use it an when not to, because if the runtime "survives" multiple test runs, we could potentially have leftover data in the (inmem) databases.