[TEST] Build the singleton test on windows.

[marcalff]

Contributes to #2534

Note that the original issue in #2534 is not fixed.
This change only adds unit tests to reproduce the issue, and show the current failure in windows.

Changes

Please provide a brief description of the changes here.

• Port the singleton unit test in API to build with windows
• Added verbose output for unit tests in CI on windows
• Commented the failing test cases on windows

For significant contributions please make sure you have completed the following items:

• CHANGELOG.md updated for non-trivial changes
• Unit tests have been added
• Changes in public API reviewed

[netlify]

✅ Deploy Preview for opentelemetry-cpp-api-docs canceled.

Name	Link
🔨 Latest commit	6cefbe4
🔍 Latest deploy log	https://app.netlify.com/sites/opentelemetry-cpp-api-docs/deploys/6761afcd89a69300082534ad

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.83%. Comparing base (1cbea09) to head (6cefbe4).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3183      +/-   ##
==========================================
+ Coverage   87.82%   87.83%   +0.02%     
==========================================
  Files         195      195              
  Lines        6154     6154              
==========================================
+ Hits         5404     5405       +1     
+ Misses        750      749       -1     

see 1 file with indirect coverage changes