feat(yarn): Also log warnings output by yarn info

[fviernau]

Part of #9261.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 67.45%. Comparing base (db0ec55) to head (072bbe2).
Report is 10 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #9338   +/-   ##
=========================================
  Coverage     67.45%   67.45%           
  Complexity     1200     1200           
=========================================
  Files           241      241           
  Lines          8500     8500           
  Branches        904      904           
=========================================
  Hits           5734     5734           
  Misses         2402     2402           
  Partials        364      364           

Flag	Coverage Δ
funTest-non-docker	33.60% <ø> (ø)
test	37.47% <ø> (ø)

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[sschuberth]

Merging prematurely as funTest-docker seems to be stuck.