feat(Yarn): Add basic support for Corepack [1].

[oheger-bosch]

According to the Yarn 2+ documentation, Corepack is the preferred way to install this package manager. If this method is used, the name of the executable has to be determined differently.

Please ensure that your pull request adheres to our contribution guidelines. Thank you!

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 67.85%. Comparing base (1765a15) to head (b45d3a1). Report is 21 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #8703   +/-   ##
=========================================
  Coverage     67.85%   67.85%           
  Complexity     1165     1165           
=========================================
  Files           244      244           
  Lines          7736     7736           
  Branches        865      865           
=========================================
  Hits           5249     5249           
  Misses         2128     2128           
  Partials        359      359           

Flag	Coverage Δ
funTest-non-docker	34.17% <ø> (ø)

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[sschuberth]

Test failures are related to outdated Pub tests only, see https://github.com/oss-review-toolkit/ort/pull/8722.