Requester: fix type annotation for requestBlobAndCheck

[fsouza]

requestBlob returns tuple[int, dict[str, Any], str], so requestBlobAndCheck should return tuple[dict[str, Any], str].

[fsouza]

oh wait I misread the code. closing

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.74%. Comparing base (e4106e0) to head (8836d3e).

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Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2927   +/-   ##
=======================================
  Coverage   96.74%   96.74%           
=======================================
  Files         147      147           
  Lines       14978    14978           
=======================================
  Hits        14491    14491           
  Misses        487      487           

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