Feature test retry

[rihter007]

Initial implementation of test retry (similar to previous implementation of step retry).
Test retry is useful when target became broken and we should re-launch test from the beginning.

Next PR: add test retry to database.

[rihter007]

Will add e2e test for test retry

[rihter007]

Added unit tests

[rihter007]

The majority of changes are tests, I can split PR into two to ease the reviewing

[rihter007]

Ha-ha, need to fix race condition in test runner. Unit test fails, because it contains light-weight step

[codecov-commenter]

Codecov Report

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The diff coverage is n/a.

@@           Coverage Diff           @@
##             main      #37   +/-   ##
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  Coverage        ?   66.27%           
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  Files           ?      155           
  Lines           ?     9263           
  Branches        ?        0           
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  Hits            ?     6139           
  Misses          ?     2473           
  Partials        ?      651           

Flag	Coverage Δ
e2e	50.29% <0.00%> (?)
integration	57.45% <0.00%> (?)
unittests	47.22% <0.00%> (?)

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[mimir-d]

i added a couple more comments on your answers. I see a button above with "requested review" though. Can you confirm that a new iteration is ready?

[mimir-d]

I'll wait for the tests fix though

[rihter007]

I'll wait for the tests fix though

Done :)