Add tests to check if the ZIO Runtime is propagated to req execution

[kyri-petrou]

Followup of #2807, adding a couple of tests to ensure that we're properly propagating the bootstrapped runtime to the request execution

[kyri-petrou]

@987Nabil it seems there's a flaky test that keeps failing. Is this a new test? I don't remember having it fail so many times in a row

[987Nabil]

@kyri-petrou I had some issues on my PR too. I'll take a look soonish, but I am not a the PC rn

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 64.28%. Comparing base (65dc08d) to head (bd8a330).

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Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2809   +/-   ##
=======================================
  Coverage   64.28%   64.28%           
=======================================
  Files         155      155           
  Lines        9086     9086           
  Branches     1586     1586           
=======================================
  Hits         5841     5841           
  Misses       3245     3245           

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[kyri-petrou]

Marked this test suite as sequential hoping it'll fix the flakiness

[kyri-petrou]

@987Nabil the test issue is gone now that I made the test suite run sequentially, but the coverage action is hanging due to an issue with the CI setup:

{'detail': ErrorDetail(string='Unable to locate build via Github Actions API. Please upload with the Codecov repository upload token to resolve issue.', code='not_found')}